New Revised Standard Version
Beware, keep alert; for you do not know when the time will come.

Contemporary English Version
So watch out and be ready! You don't know when the time will come.

New American Bible
Be watchful! Be alert! You do not know when the time will come.

Douay-Rheims Bible
Take ye heed, watch and pray. For ye know not when the time is.

Take ye heed, watch and pray. For ye know not when the time is.

Mark 13:23,35-37 Take you heed therefore: behold, I have foretold you all things. . . .

Mark 14:37,38 And he cometh and findeth them sleeping. And he saith to Peter: Simon, sleepest thou? Couldst thou not watch one hour? . . .

Matthew 24:42-44 Watch ye therefore, because you know not what hour your Lord will come. . . .

Matthew 25:13 Watch ye therefore, because you know not the day nor the hour.

Matthew 26:40,41 And he cometh to his disciples and findeth them asleep. And he saith to Peter: What? Could you not watch one hour with me? . . .

Luke 12:40 Be you then also ready: for at what hour you think not the Son of man will come.

Luke 21:34-36 And take heed to yourselves, lest perhaps your hearts be overcharged with surfeiting and drunkenness and the cares of this life: and that day come upon you suddenly. . . .

Romans 13:11,12,14 And that, knowing the season, that it is now the hour for us to rise from sleep. For now our salvation is nearer than when we believed. . . .

1 Corinthians 16:13 Watch ye: stand fast in the faith: do manfully and be strengthened.

Ephesians 6:18 By all prayer and supplication praying at all times in the spirit: and in the same watching with all instance and supplication for all the saints:

1 Thessalonians 5:5-8 For all you are the children of light and children of the day: we are not of the night nor of darkness. . . .

Hebrews 12:15 Looking diligently, lest any man be wanting to the grace of God: lest any root of bitterness springing up do hinder and by it many be defiled:

1 Peter 4:7 But the end of all is at hand. Be prudent therefore and watch in prayers.

1 Peter 5:8 Be sober and watch: because your adversary the devil, as a roaring lion, goeth about seeking whom he may devour.

Revelation 3:2 Be watchful and strengthen the things that remain, which are ready to die. For I find not thy works full before my God.

Revelation 16:15 Behold, I come as a thief. Blessed is he that watcheth and keepeth his garments, lest he walk naked, and they see his shame.