Revelation 2:5

Remember, therefore, from where thou art fallen and repent and do the first works, or else I will come unto thee quickly and will remove thy lampstand out of its place, except thou repent.

Revelation 2:16

Repent, or else I will come unto thee quickly and will fight against them with the sword of my mouth.

Revelation 3:19

As many as I love, I rebuke and chasten; be zealous therefore, and repent.

Isaiah 1:26

and I will restore thy judges as at the first and thy counsellors as at the beginning; afterward thou shalt be called The city of righteousness, the faithful city.

Isaiah 14:12

How art thou fallen from heaven, O Lucifer, son of the morning! How art thou cut down to the ground, who didst claim the Gentiles as an inheritance!

Jeremiah 2:2-3

Go and cry out in the ears of Jerusalem, saying, Thus saith the LORD: I remember thee, the mercy of thy youth, the love of thine espousals, when thou didst go after me in the wilderness, in a land that was not sown.

Ezekiel 16:61-63

Then thou shalt remember thy ways, and be ashamed, when thou shalt receive thy sisters, thine elder and thy younger: and I will give them unto thee for daughters, but not by thy covenant.

Ezekiel 20:43

And there ye shall remember your ways and all your doings, in which ye have been defiled; and ye shall loathe yourselves in your own sight for all your evils that ye have committed.

Ezekiel 36:31

Then ye shall remember your own evil ways and your doings that were not good and shall loathe yourselves in your own sight for your iniquities and for your abominations.

Hosea 9:10

I found Israel like grapes in the wilderness; I saw your fathers as the early fruit of the fig tree in her beginning; but they went in unto Baalpeor and separated themselves unto shame and made themselves as abominable as that which they loved.

Hosea 14:1

O Israel, become converted unto the LORD thy God; for thou hast fallen by thine iniquity.

Malachi 3:4

Then the offering of Judah and Jerusalem shall be pleasant unto the LORD as in the days of old and as in former years.

Malachi 4:6

and he shall convert the heart of the fathers to the sons, and the heart of the sons to the fathers, lest I come and smite the earth with destruction.

Matthew 21:41-43

They say unto him, He will destroy those wicked men without mercy and will let out his vineyard unto other husbandmen who shall render him the fruits in their seasons.

Matthew 24:48-51

But and if that evil slave shall say in his heart, My lord delays his coming,

Mark 12:9

What, therefore, shall the lord of the vineyard do? He shall come and destroy those husbandmen and shall give his vineyard unto others.

Luke 1:17

And he shall go before him in the spirit and power of Elijah to turn the hearts of the fathers to the children and the rebellious to the prudence of the just, to make ready a prepared people for the Lord.

Luke 12:45-46

But and if that slave shall say in his heart, My lord delays his coming, and shall begin to beat the menslaves and maids and to eat and drink and to be drunken,

Luke 20:16

He shall come and destroy these husbandmen and shall give the vineyard to others. And when they heard it, they said, May it not be!

Acts 17:30-31

For the times of this ignorance God overlooked, but he now commands all men everywhere to repent

Galatians 5:4

Ye are empty of the Christ, whosoever of you that justify yourselves by the law; ye are fallen from grace.

Hebrews 10:32

But bring to memory the former days, in which, after ye received the light, ye endured a great fight of afflictions;

2 Peter 1:12-13

For this reason, I will not leave off reminding you always of these things, although ye know them and are established in the present truth.

Jude 1:24

Now unto him that is powerful to keep you without sin and to present you faultless before the presence of his glory with exceeding joy,

Revelation 1:20

The mystery of the seven stars which thou sawest in my right hand and the seven golden lampstands: The seven stars are the angels of the seven congregations , and the seven lampstands which thou sawest are the seven congregations .

Revelation 2:2

I know thy works and thy labour and thy patience and how thou canst not bear those who are evil; and thou hast tried those who say they are apostles and are not and hast found them liars,

Revelation 2:19

I have known thy works and charity and service and faith and thy patience and thy works and the last to be more than the first.

Revelation 2:21-22

And I have given her time to repent of her fornication, and she repented not.

Revelation 3:2-3

Be watchful, and strengthen the things which remain, that are ready to die; for I have not found thy works perfect before God.

Revelation 9:20-21

And the rest of the men who were not killed by these plagues did not repent of the works of their hands, that they should not worship demons and the images of gold and of silver and of brass and of stone and of wood, which neither can see nor hear nor walk.

Revelation 16:9

And men were scorched with great heat, and blasphemed the name of God, who has authority over these plagues; and they did not repent to give him glory.

Treasury of Scripture Knowledge

Summary

Remember therefore from whence thou art fallen, and repent, and do the first works; or else I will come unto thee quickly, and will remove thy candlestick out of his place, except thou repent.

Bible References

Remember

Revelation 3:3
Remember, therefore, of that which thou hast received and heard and hold to it and repent. If therefore thou shalt not watch, I will come to thee as a thief, and thou shalt not know what hour I will come upon thee.
Ezekiel 16:61
Then thou shalt remember thy ways, and be ashamed, when thou shalt receive thy sisters, thine elder and thy younger: and I will give them unto thee for daughters, but not by thy covenant.
Ezekiel 20:43
And there ye shall remember your ways and all your doings, in which ye have been defiled; and ye shall loathe yourselves in your own sight for all your evils that ye have committed.
Ezekiel 36:31
Then ye shall remember your own evil ways and your doings that were not good and shall loathe yourselves in your own sight for your iniquities and for your abominations.
2 Peter 1:12
For this reason, I will not leave off reminding you always of these things, although ye know them and are established in the present truth.

Thou art

Isaiah 14:12
How art thou fallen from heaven, O Lucifer, son of the morning! How art thou cut down to the ground, who didst claim the Gentiles as an inheritance!
Hosea 14:1
O Israel, become converted unto the LORD thy God; for thou hast fallen by thine iniquity.
Galatians 5:4
Ye are empty of the Christ, whosoever of you that justify yourselves by the law; ye are fallen from grace.
Jude 1:24
Now unto him that is powerful to keep you without sin and to present you faultless before the presence of his glory with exceeding joy,

And repent

Revelation 2:16
Repent, or else I will come unto thee quickly and will fight against them with the sword of my mouth.
Revelation 3:3
Remember, therefore, of that which thou hast received and heard and hold to it and repent. If therefore thou shalt not watch, I will come to thee as a thief, and thou shalt not know what hour I will come upon thee.
Revelation 9:20
And the rest of the men who were not killed by these plagues did not repent of the works of their hands, that they should not worship demons and the images of gold and of silver and of brass and of stone and of wood, which neither can see nor hear nor walk.
Revelation 16:9
And men were scorched with great heat, and blasphemed the name of God, who has authority over these plagues; and they did not repent to give him glory.
Acts 17:30
For the times of this ignorance God overlooked, but he now commands all men everywhere to repent

And do

Revelation 2:19
I have known thy works and charity and service and faith and thy patience and thy works and the last to be more than the first.
Revelation 3:2
Be watchful, and strengthen the things which remain, that are ready to die; for I have not found thy works perfect before God.
Isaiah 1:26
and I will restore thy judges as at the first and thy counsellors as at the beginning; afterward thou shalt be called The city of righteousness, the faithful city.
Jeremiah 2:2
Go and cry out in the ears of Jerusalem, saying, Thus saith the LORD: I remember thee, the mercy of thy youth, the love of thine espousals, when thou didst go after me in the wilderness, in a land that was not sown.
Hosea 9:10
I found Israel like grapes in the wilderness; I saw your fathers as the early fruit of the fig tree in her beginning; but they went in unto Baalpeor and separated themselves unto shame and made themselves as abominable as that which they loved.
Malachi 3:4
Then the offering of Judah and Jerusalem shall be pleasant unto the LORD as in the days of old and as in former years.
Malachi 4:6
and he shall convert the heart of the fathers to the sons, and the heart of the sons to the fathers, lest I come and smite the earth with destruction.
Luke 1:17
And he shall go before him in the spirit and power of Elijah to turn the hearts of the fathers to the children and the rebellious to the prudence of the just, to make ready a prepared people for the Lord.

Else

Revelation 2:16
Repent, or else I will come unto thee quickly and will fight against them with the sword of my mouth.
Revelation 3:3
Remember, therefore, of that which thou hast received and heard and hold to it and repent. If therefore thou shalt not watch, I will come to thee as a thief, and thou shalt not know what hour I will come upon thee.
Matthew 21:41
They say unto him, He will destroy those wicked men without mercy and will let out his vineyard unto other husbandmen who shall render him the fruits in their seasons.
Matthew 24:48
But and if that evil slave shall say in his heart, My lord delays his coming,
Mark 12:9
What, therefore, shall the lord of the vineyard do? He shall come and destroy those husbandmen and shall give his vineyard unto others.
Luke 12:45
But and if that slave shall say in his heart, My lord delays his coming, and shall begin to beat the menslaves and maids and to eat and drink and to be drunken,
Luke 20:16
He shall come and destroy these husbandmen and shall give the vineyard to others. And when they heard it, they said, May it not be!

General references

Exodus 40:24
And he put the lampstand in the tabernacle of the testimony, over against the table, on the side of the Negev of the tabernacle.
Matthew 25:7
Then all those virgins arose and trimmed their lamps.
1 Corinthians 11:31
For if we would examine ourselves, we should not be judged.