2 Corinthians 6:14

Be not unequally yoked with infidels; for what participation hath righteousness with unrighteousness? and what fellowship [is there] between light and darkness?

1 Corinthians 15:33

Be not deceived: evil conversations corrupt good manners.

Ephesians 5:6-14

Let no man deceive you with vain words: for because of these things, the wrath of God cometh on the children of disobedience.

John 15:18-19

If the world hate you, ye know that it hated me before you.

1 Corinthians 5:9

I have written unto you in an epistle that you should not associate with fornicators.

1 Corinthians 7:39

The wife is bound by the law as long as her husband liveth: but if her husband be dead, she is free to be married to whomsoever she will, but only in the Lord.

1 Corinthians 10:21

Ye cannot drink the cup of the Lord and the cup of daemons: ye cannot be partakers of the table of the Lord, and the table of daemons.

James 4:4

Ye adulterers and adultresses, know ye not that friendship with the world is enmity against God? whosoever therefore will be a friend of the world is set down an enemy to God.

1 Peter 2:9-10

But ye are an elect race, a royal priesthood, a holy nation, a people acquired by purchase; that ye should publish abroad the excellencies of him, who hath called you out of darkness into his marvellous light:

1 Peter 4:2-4

that he might not spend the remaining space of life in the flesh after human passions, but the divine will.

John 7:7

The world cannot hate you, but me it hateth, because I testify of it, that its deeds are evil.

Acts 4:23

But they being dismissed, came unto their own friends, and told them all things which the high-priests and elders had said.

Romans 13:12-14

The night is far advanced, the day approaches: let us therefore put off the works of darkness, and let us put on the armour of light.

Ephesians 4:17-20

This then I urge and testify in the Lord, that ye walk no more as the other Gentiles walk in the vanity of their mind,

Philippians 2:15

that ye may be blameless and harmless, the children of God, inoffensive, in the midst of an untoward and perverse generation, among whom ye shine as luminaries in the world;

1 Thessalonians 5:4-8

But ye, brethren, are not in darkness, that the day should overtake you as a thief.

1 John 1:5-7

And this is the promise which we have heard from him, and declare unto you, that God is light, and that darkness in him there is none.

1 John 3:12-14

Not as Cain, who was of the wicked one, and slew his brother: and wherefore did he slay him? Because his own works were wicked, and those of his brother righteous.

Treasury of Scripture Knowledge

Summary

Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?

Bible References

Unequally

1 Corinthians 5:9
I have written unto you in an epistle that you should not associate with fornicators.
1 Corinthians 7:39
The wife is bound by the law as long as her husband liveth: but if her husband be dead, she is free to be married to whomsoever she will, but only in the Lord.
1 Corinthians 15:33
Be not deceived: evil conversations corrupt good manners.
James 4:4
Ye adulterers and adultresses, know ye not that friendship with the world is enmity against God? whosoever therefore will be a friend of the world is set down an enemy to God.

For

John 7:7
The world cannot hate you, but me it hateth, because I testify of it, that its deeds are evil.
John 15:18
If the world hate you, ye know that it hated me before you.
Acts 4:23
But they being dismissed, came unto their own friends, and told them all things which the high-priests and elders had said.
1 Corinthians 10:21
Ye cannot drink the cup of the Lord and the cup of daemons: ye cannot be partakers of the table of the Lord, and the table of daemons.
Ephesians 5:6
Let no man deceive you with vain words: for because of these things, the wrath of God cometh on the children of disobedience.
1 John 3:12
Not as Cain, who was of the wicked one, and slew his brother: and wherefore did he slay him? Because his own works were wicked, and those of his brother righteous.

And what

Romans 13:12
The night is far advanced, the day approaches: let us therefore put off the works of darkness, and let us put on the armour of light.
Ephesians 4:17
This then I urge and testify in the Lord, that ye walk no more as the other Gentiles walk in the vanity of their mind,
Ephesians 5:8
For ye were formerly darkness, but now are ye light in the Lord: walk as children of light;
Philippians 2:15
that ye may be blameless and harmless, the children of God, inoffensive, in the midst of an untoward and perverse generation, among whom ye shine as luminaries in the world;
1 Thessalonians 5:4
But ye, brethren, are not in darkness, that the day should overtake you as a thief.
1 Peter 2:9
But ye are an elect race, a royal priesthood, a holy nation, a people acquired by purchase; that ye should publish abroad the excellencies of him, who hath called you out of darkness into his marvellous light:
1 Peter 4:2
that he might not spend the remaining space of life in the flesh after human passions, but the divine will.
1 John 1:5
And this is the promise which we have heard from him, and declare unto you, that God is light, and that darkness in him there is none.