A detailed companion to The Key of 23: How Biblical Time Spans Fit Together. “Noah was 600 years old when the floodwaters engulfed the earth.” — Genesis 7:6, (NET) Biblical chronology is built from definite numbers: an age at fatherhood, a complete lifespan, a period of sojourn, or a count of years to an appointed … Continue reading The Key of 23: Calendar Ratios, Chronological Anchors, and Cumulative Patterns