Genesis 6:1
And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,
Cross-reference
Genesis 1:28
Allusion
This population growth echoes the 'be fruitful and multiply' command from creation, showing its initial fulfillment.
Matthew 24:37
Typology
Jesus directly compares the 'days of the Son of Man' to the days of Noah before the Flood, a clear typological warning.
2 Peter 2:5
Parallel
2 Peter 2:5 highlights Noah as 'a preacher of righteousness' amid the corrupt pre-flood generation — the world God judged.