Revelation 3:3
Remember, therefore, how you have received, and did hear; and keep it, and repent. If, therefore, you do not watch, I will come as a thief, and you shall not know at what hour I will come upon you.
Revelation 2:5
Remember, therefore whence you have fallen, and repent, and do your first works; or else I am coming to you, and will remove your candlestick out of its place, if you do not repent.
2 Peter 3:10
But the day of the Lord will come as a thief, in which the heavens will pass away with a rushing noise, and the elements, being intensely hot, shall be dissolved, and the earth and the works therein shall be burned up.
1 Thessalonians 5:2
for ye yourselves know accurately that the day of the Lord so comes as a thief at night.
Revelation 16:15
"Behold, I come as a thief! Happy is he that is watching, and keeping his garments; that he walk not naked, and they see his shame."
Matthew 25:13
Watch, therefore, because ye know not the day, nor the hour!
2 Timothy 1:13
Hold the pattern of healthful words which you heard from me, in faith and love which is in Christ Jesus.
Matthew 24:42-43
Watch ye, therefore, because ye know not in what day your Lord is coming.
Mark 13:33
Take heed, watch [and pray]; for ye know not when the time is.
Mark 13:36
lest, coming suddenly, he find you sleeping.
Luke 12:39-40
But know this, that, if the householder had known at what hour the thief was coming, he would have watched, and not have suffered his house to be broken through.
1 Thessalonians 5:4-6
But ye, brethren, are not in darkness, that the day should overtake you as a thief;
1 Timothy 6:20
O Timothy, guard the deposit; turning away from the profane babblings, and oppositions of that which is falsely called knowledge;
Hebrews 2:1
For this reason, it is needful that we give the more earnest heed to the things heard, lest at any time we drift past them.
2 Peter 1:13
And I think it right, as long as I am in this tabernacle, to stir you up by reminding you;
2 Peter 3:1
This, a second letter, beloved, I now write to you, in both which I stir up your sincere mind by way of remembrance;
Revelation 2:21-22
And I gave her time, that she might repent; and she is not willing to repent of her fornication.
Revelation 2:25
nevertheless, that which ye have, hold fast till I come.
Revelation 3:11
I am coming speedily; hold fast that which you have, that no one take your crown.
Revelation 3:19
As many as I love, I reprove and chasten. Be zealous, therefore, and repent.