Matthew 24:42-44 commands the same watchfulness: stay ready because you don't know the day — directly echoing this verse.

Matthew 24:36 is the direct source: no one knows the day or hour — it grounds the parable's call to watch in the unknowable timing.

Matthew 24:44 gives the same command to be ready because the hour is unknown — reinforcing the parable's message.

Mark 13:33-37 uses the same 'stay awake' command with the parable of the doorkeeper — a parallel warning of sudden arrival.

Luke 21:36 urges constant watchfulness and prayer to escape judgment — a parallel call to readiness from the same teaching.

1 Thessalonians 5:6 commands 'let us not sleep, but keep awake and be sober' — a direct parallel to the watchfulness here.

1 Peter 4:7 echoes the urgency: the end is near, so be alert — reinforcing the same call to watchfulness as the parable's conclusion.

Revelation 16:15 uses the same 'thief' imagery and commands staying awake — directly reinforcing the vigilance demanded in the parable.

Mark 13:33 is the parallel passage: keep awake because you don't know the time — identical teaching from Jesus.

Luke 12:40 gives the same warning — be ready because the Son of Man comes at an unexpected hour — directly reinforcing the call to watch.

1 Thessalonians 5:2 describes the day of the Lord coming like a thief — mirroring the unexpected hour theme that demands readiness.

Revelation 3:3 warns that Jesus will come like a thief at an unknown hour if they do not wake — directly parallel to the watchfulness here.