Ecclesiastes 8:16 observes that man cannot find out the work of God — a broader statement on ignorance that includes not knowing future events.

In Ecclesiastes 6:12, the same theme of ignorance about the future appears—reinforcing that no one knows what will come.

In Ecclesiastes 9:12, this ignorance is illustrated with a net catching fish—a vivid expansion of the unknowable time.

In Ecclesiastes 10:14, the same point is made: no one knows the future—a repetition of the theme.

Ecclesiastes 3:22 asks 'who will bring him to see what will occur after him?' — the same inability to know the future within the same book.

Proverbs 24:22 echoes the same uncertainty: 'who knows the ruin' — both emphasize that calamity and its timing are unknown.

Matthew 24:44 applies the same unknown hour to Christ's return: 'coming at an hour you do not expect' — readiness required.

Matthew 24:50 repeats the warning: the master comes 'on a day he does not expect' — the very ignorance Ecclesiastes notes.

The parable of ten virgins concludes: 'you do not know the day nor the hour' — directly reinforcing the theme of hidden timing.

1 Thessalonians 5:1-3 says the day of the Lord comes like a thief — sudden destruction when they think peace, mirroring unknown timing.

Proverbs 29:1 describes sudden destruction for the stubborn — reinforcing that calamity strikes without warning, though focus is on cause.