Professor Grant Horner's Bible reading system, explained

The short answer

Professor Grant Horner's Bible reading system has you read ten chapters a day, one from each of ten lists that together hold the Protestant Bible's 1,189 chapters. Each list starts over when it ends, and because the lists run from 28 chapters (Acts) to 250 (Isaiah to Malachi), the day's ten keep changing. Every chapter has been read by day 250. An average day is about 6,050 words, or 25 to 30 minutes of silent reading, against the hour a day Horner's sheet suggests.

In this guide

1. What is Professor Horner’s Bible reading system?
2. The ten lists of the Horner Bible reading plan
3. How long does the Horner plan take each day?
4. Will the same ten chapters ever line up again?
5. Where am I on day N?
6. If you miss a day, or ten chapters is too many
7. Bookmarks, checklists and keeping track
8. Horner or M’Cheyne?
9. Questions people ask
10. Sources

The Horner Bible reading plan is unusual twice over. Most plans give you a date to finish by; Grant Horner’s gives you ten bookmarks and no finish line, just ten chapters a day from ten lists that each start over when they end. His instruction sheet explains the method well and leaves most of the arithmetic to you, so we worked it out: how often each list comes round, how long a day takes by our own word count, and where the lists stand on any given day.

• 10chapters a day, one from each list
• 1,189chapters across the ten lists
• 250days until every chapter has been read
• 25–30 minan average day, read silently

What is Professor Horner’s Bible reading system?

Professor Grant Horner’s Bible reading system is a daily routine of ten chapters, one from each of ten lists. On day one you read Matthew 1, Genesis 1, Romans 1 and the first chapter of each of the other lists; on day two, the second chapter of each. When a list reaches its last chapter it starts again from the top, while the other nine carry on wherever they are.

Horner, then an associate professor at The Master’s College north of Los Angeles and a scholar of the literature, theology and philosophy of the Renaissance and Reformation, began the system in 1983 as a new Christian, “adapting and tweaking the basic design of another system.” Its present form, he writes, dates from the mid-1990s, when he was doing doctoral work at UNC-Chapel Hill and Duke. The goal, in his words, is twofold: “To know scripture, and to love and obey God more.”

It is a reading system rather than a study method. Horner asks readers to “read as fast as you comfortably can with moderate retention,” to do all their reading in one Bible so they learn where everything is, and not to stop and look up cross-references. Understanding, in his view, comes from reading a great deal of Scripture over time, each part in the context of the rest.

The ten lists of the Horner Bible reading plan

Horner’s ten lists divide the 66 books of the Protestant Bible, all 1,189 chapters, into ten runs of very different lengths. Since you read one chapter of each list a day, a list’s chapter count is also the number of days one pass through it takes. The last column is how many times each list comes round in a year: 365 days divided by its length.

Horner’s sheet sums up the year like this: the Gospels four times, the Pentateuch twice, Paul’s letters four to five times each, the Old Testament wisdom books six times, the Psalms at least twice, Proverbs and Acts a dozen times, and the history and prophetic books about one and a half times. The arithmetic agrees, with one small rounding: the second pass through Genesis to Deuteronomy ends on day 374, nine days into the next year.

The unevenness is the design. Proverbs and Acts are about a month long, so they come round monthly, while the long Old Testament runs of history and prophecy come round about once every eight months. A full year of ten-chapter days is 3,650 chapters, or about 2.2 million words in the World English Bible: nearly three times the length of the whole Protestant Bible.

The lists follow the 66-book Protestant canon. Catholic Bibles also hold seven books that Catholics call deuterocanonical and Protestants usually call the Apocrypha (Tobit, Judith, Wisdom, Sirach, Baruch and 1 and 2 Maccabees) and longer forms of Esther and Daniel, 145 more chapters in all; Orthodox and Ethiopian Orthodox Tewahedo Bibles hold further books again. None of them are on Horner’s lists, so a reader whose Bible includes them could read them as an eleventh list or alongside the ten. Our Catholic Bible reading plan lays out all 73 books at any pace.

Why the YouVersion edition is 250 days

Every chapter of the Bible has been read at least once by day 250. That is the length of the longest list, Isaiah to Malachi; the history list (249 chapters) finishes the day before, and every shorter list has already been round at least once. YouVersion’s edition, “Prof. Horner’s Bible Reading System”, is 250 days long and says it is provided by Horner himself.

The system on his sheet has no end. Its instruction is to “rotate all the way through all the Scriptures constantly,” and Ligonier’s list of reading plans gives its duration as “ongoing.”

How long does the Horner plan take each day?

An average day on the Horner plan is about 6,050 words in the World English Bible. That is about 25 minutes of silent reading at the average adult pace of 238 words a minute, or 30 minutes at a relaxed 200. In the King James Version, at about 6,330 words, it takes about a minute longer.

Horner’s own figure is higher. He writes that an average reader “can usually do this in about an hour a day – 5-6 minutes per chapter,” and that “many people report moving confidently through the ten chapters in 35-40 minutes.” His hour assumes 5 to 6 minutes a chapter, while by our count an average chapter is 631 words, a little under 3 minutes at the average pace. Both can be right for different readers: ours is steady silent reading of a modern translation, and pausing, reading aloud or going back over a line all add to it. Horner also expects the time to fall, since after a book has been read once or twice, he writes, a reader’s speed in it “usually doubles or triples.”

Ten chapters are not ten equal amounts. A Gospel chapter averages about 900 words, a psalm about 275. Here is what each list adds to a day, from our word count of the World English Bible:

Because the lists drift against each other, no two days weigh the same. In the first year the lightest day is about 4,200 words (18 minutes at the average pace) and the heaviest about 8,400 (35 minutes), and nine days in ten fall between about 21 and 31 minutes. The heaviest is day 119, when Psalm 119, the longest chapter in the Bible at 176 verses, arrives on the same day as Acts 7, Stephen’s speech before the council. For the whole Bible timed book by book, see how long it takes to read the Bible.

Will the same ten chapters ever line up again?

Not in any lifetime. Horner’s sheet promises that “you will NEVER read the same set of ten chapters together again”, and the arithmetic bears it out: the ten list lengths first line up again after 5,845,262,923,500 days, their least common multiple, which is about 16 billion years. Pairs of lists meet far sooner. Proverbs and Acts restart on the same day every 868 days, and the Psalms and the prophets every 750, but the full set of ten never repeats.

That drift is the point of the system for Horner. Because the combinations keep changing, he writes, readers meet “the Bible commenting on itself in constantly changing ways,” and he names pairings he has noticed, such as Ecclesiastes beside 2 Corinthians and Deuteronomy beside Matthew. His own example is day 29, which puts Mark 1, Genesis 29 and Psalm 29 on the same day.

Where am I on day N?

To find any list’s chapter on a given day, divide the day number by the list’s length and keep the remainder. The remainder is the chapter’s position in the list, and a remainder of zero means the list’s last chapter. On day 200, the Psalms list is at Psalm 50 (200 minus 150), and Proverbs is at chapter 14, because 200 is 6 × 31 + 14. For a list of several books, count on through the books in order: position 35 in the fourth list is 2 Peter 3.

Here are three days worked out:

In a spreadsheet, with the day number in cell A2, =MOD(A2-1, 89)+1 gives the position in the Gospels list; put each list’s length in place of 89 for the others. Turning a position into a book and chapter takes a lookup table of that list’s chapters.

The day number only matters if you follow a dated version, such as a 250-day app plan. With bookmarks, your place is simply wherever the bookmarks are.

If you miss a day, or ten chapters is too many

Missing a day on the Horner plan costs nothing, because nothing in the system is tied to a date. Your place is held by the bookmarks, so the next time you read, you read from them. Horner’s advice is short: “If you miss a day or two – ok, get over it, then keep going.”

If ten chapters is more than your days hold, there are ways to keep the shape and lower the load:

• Alternate days, five chapters each. Horner writes that he has sometimes done the system this way. Reading lists 1 to 5 one day and 6 to 10 the next moves every list at half speed: about 3,000 words, or 12 to 15 minutes a day, with every chapter read by day 500.
• Read for a set time, then stop. Work down the lists in order for as long as you have, and start the next day at the list you reached. Every list still moves in turn; only the pace changes.
• Double up when there is room. Horner has also done two sets in a day, twenty chapters. A free afternoon can move all ten bookmarks a long way.
• Restart cleanly after a long break. Every list comes round again, so putting all ten bookmarks back to chapter 1 loses nothing, and neither does picking up where they are.

If you are on a dated plan that has slipped, our guide to catching up on a Bible reading plan covers the ways back in more detail.

Bookmarks, checklists and keeping track

Horner’s own answer to keeping track is ten bookmarks or sticky notes, one per list, each with that list’s books written on it and moved along as you read. His sheet includes a set to cut out, and he suggests keeping the instructions in your Bible and reviewing them from time to time. Other ways to keep your place:

• A card with ten lines. One per list, with the current chapter on each; cross it out and write the next. It lives inside the cover and replaces all ten bookmarks.
• A checklist per list. Write each list’s chapters out as boxes and tick them pass by pass. A different color for each pass shows how many times a list has gone round.
• A spreadsheet. A row per day and a column per list, using the formula above, with a cell to mark each day done.
• A record of chapters covered. Rather than tracking ten positions, track which chapters of the Bible you have read at all. Our guide to tracking your Bible reading compares paper, spreadsheets and apps.

A chapter-by-chapter record fills unevenly under Horner’s system. Proverbs and Acts are complete by the end of the first month, the Gospels by day 89, and the last of the prophets only on day 250. That is expected, not a sign of falling behind.

Horner or M’Cheyne?

Robert Murray M’Cheyne’s calendar is another classic plan that reads several parts of the Bible each day, and the two differ mainly in load and in shape. M’Cheyne gives four readings a day on a dated calendar, which in YouVersion’s edition is two passages from the Old Testament, one from the New, and one from the Psalms or the Gospels.

Over a year, M’Cheyne’s pattern comes to about 1,600 chapters, or four or five a day, so Horner’s ten is a little more than twice the reading. M’Cheyne suits a reader who wants a calendar and a year with a clear end. Horner suits one who has half an hour, likes variety, and would rather see the whole Bible often than once. Our guide to the M’Cheyne plan explains its four readings, and which Bible reading plan is best sets the classic plans side by side.

And if ten-chapter days last only a month, the first 31 of them still read Acts and Proverbs the whole way through.

Questions people ask

Does the Horner plan read the whole Bible in a year?

Yes, and much of it more than once. Every chapter of the Protestant Bible has been read by day 250, and in a full year the Gospels come round about four times, Proverbs and Acts about twelve, and the history and prophetic books about one and a half. The system has no finishing date. Each list simply starts over when it ends.

Why is the YouVersion version of the Horner plan 250 days?

250 is the length of the longest list, Isaiah to Malachi, which makes it the first day on which every chapter has been read. By day 250 that list has reached Malachi 4, the history list finished the day before, and every shorter list has gone round at least once. Horner's own sheet gives no end date; YouVersion's edition, which it says Horner provided, runs for those 250 days.

Can I do the Horner plan with five chapters a day?

Yes. Horner writes that he has sometimes alternated days at five chapters each. Reading the first five lists one day and the other five the next keeps every list in order, at half speed. A day then takes about 12 to 15 minutes of silent reading, and every chapter of the Bible has been read by day 500 rather than day 250.

What happens if I miss a day on the Horner plan?

Nothing has to be made up. The plan is kept by bookmarks rather than dates, so the next time you read, you start wherever they are. Horner's own advice is to "get over it, then keep going." If you follow a dated, day-numbered version, you can rejoin at today's number or carry on from your own place; every chapter comes round again either way.

Why does the Horner plan read Proverbs and Acts every month?

Because their lists are 31 and 28 chapters long, a chapter a day takes each of them about a month, so both come round twelve or thirteen times a year. Horner treats that frequency as deliberate, and his sheet answers anyone who wonders why with a one-liner, roughly that needing to ask is a sign of needing to read them that often.

Do I need ten bookmarks for the Horner plan?

No, though Horner recommends ten bookmarks or sticky notes, each marked with its list, and his sheet includes a set to cut out. A card inside the cover listing the ten current chapters does the same job, as does a spreadsheet with a column per list. What matters is being able to find all ten places quickly the next day.

Sources

1. Grant Horner, Professor Grant Horner's Bible-Reading System (instruction sheet, PDF), sohmer.net
2. YouVersion: Prof. Horner's Bible Reading System (250 days)
3. Nathan W. Bingham, Ligonier Ministries (December 19, 2025). Bible Reading Plans for 2026
4. YouVersion: M'Cheyne One Year Reading Plan (365 days)
5. Brysbaert, M. (2019). How many words do we read per minute? A review and meta-analysis of reading rate. Journal of Memory and Language, 109, 104047.
6. World English Bible, verse-per-line edition (public domain), eBible.org
7. King James Version, verse-per-line edition (public domain), eBible.org