What Scripture says
Genesis 1 describes creation over six days, each ending with “there was evening and there was morning, the first day” (Genesis 1:5, ESV), and so on. On the seventh day God rests (Genesis 2:2–3). Several other passages bear on the question:
- Exodus 20:11 grounds Israel’s week in the creation week: “in six days the LORD made heaven and earth… and rested on the seventh day.” Exodus 31:17 repeats it.
- Genesis 2:4 uses the same word for the whole creation period: “in the day that the LORD God made the earth and the heavens.”
- The seventh day has no “evening and morning”. Hebrews 4:3–11 speaks of God’s rest as something still open for his people to enter.
- “A thousand years in your sight are but as yesterday when it is past” (Psalm 90:4).
The Hebrew word for day, yom, usually means an ordinary day. It can also mean daylight (as opposed to night, Genesis 1:5) or a longer, indefinite period (“the day of the LORD”).
What the evidence says
Context
The main views
| View | How it reads the days | Main supporting argument |
|---|---|---|
| 24-hour days | Six ordinary, consecutive days | The plain reading; “evening and morning”; Exodus 20:11 |
| Day-age | Each day is a long era | Yom can mean an era; the seventh day has no end |
| Framework | A literary structure, not a timeline | Days 1–3 form realms, days 4–6 fill them |
| Analogical days | God’s workdays, analogous to ours | Pictures God as a worker with a week like ours, without fixing their length |
| Cosmic temple (Walton) | Seven days of inaugurating creation as God’s temple | Ancient readers would hear a temple dedication |
The case for 24-hour days
- The plain reading. Numbered days with “evening and morning” sound like ordinary days. Elsewhere in the Old Testament, yom with a number usually means an ordinary day.
- Exodus 20:11. The Sabbath command seems to compare God’s week directly with ours.
- The order of events. Plants appear on day 3, but the sun, moon and stars on day 4. Plants could survive a day without the sun, but not long ages, so many young-earth Christians see this order as one of the strongest arguments for short days. (Old-earth readers reply that light already existed from day 1, or that the order is topical rather than chronological.)
- Church history. Many church fathers, and the Reformers Luther and Calvin, read the days as ordinary days.
Young-earth Christians add two further points. A worldwide flood could explain why the earth appears older than it is (see 2.8). And God may have created a mature world, with fully grown trees and an earth that looks old, just as Adam was created as an adult.
The case for longer or non-literal days
- Flexible word. Yom covers different time spans even within Genesis 1–2 (1:5, 2:4).
- The sun on day 4. There were three “days” before the sun, which measures our days, existed.
- A busy sixth day. On day 6, God makes animals and the man; Adam names the animals and searches for a partner; God makes the woman; Adam says, “This at last is bone of my bones” (Genesis 2:23). Some find this a lot for 24 hours.
- The unending seventh day. God’s seventh-day rest has no “evening and morning” and is still continuing (Hebrews 4).
- The structure. Days 1–3 create realms (light and darkness; sky and sea; land), and days 4–6 fill them (lights; birds and fish; animals and humans), suggesting a literary pattern.
Long before modern science
Not every non-literal reading came from modern geology. Augustine, around AD 400, argued that God created everything in an instant, and the days are a way of teaching the order of creation, not its duration. Origen raised similar questions. On the other hand, Basil, Ambrose and many others read the days as ordinary days. The church has never had a single official view.
Where they meet
All these views affirm what Genesis 1 is most concerned to say: there is one God, he made everything, creation is good and ordered, humans bear his image, and God rests and rules. They differ on the timeline, and on how much Genesis 1 is meant to tell us about it.
What’s still open
- The 24-hour view must explain the scientific evidence for an old earth (2.4).
- The day-age view must explain “evening and morning” and the order of days 3 and 4.
- The framework and temple views must show that ancient readers would have read the days as non-literal.
- The idea of a mature creation raises the question of why God would create evidence of a history that never happened. Supporters reply that function, not deception, is the point.
Bottom line
Hebrew yom can mean a day or an era. The 24-hour, day-age and framework views (and others) all have serious defenders, and all hold that God created. This is rated Debated.