2 Corinthians 6:14-18

Be not unequally yoked together with unbelievers: for what participation is there to righteousness and unrighteousness? or what fellowship has light unto darkness?

Revelation 21:8

But to the cowardly, and unbelieving, and the abominable, and the murderers, and the fornicators, and the sorcerers, and the idolaters, and all liars, shall be their part in the lake which burns with fire and brimstone, which is the second death.

Treasury of Scripture Knowledge

Summary

Judah hath dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah hath profaned the holiness of the LORD which he loved, and hath married the daughter of a strange god.

Bible References

And an

Revelation 21:8
But to the cowardly, and unbelieving, and the abominable, and the murderers, and the fornicators, and the sorcerers, and the idolaters, and all liars, shall be their part in the lake which burns with fire and brimstone, which is the second death.

And hath

2 Corinthians 6:14
Be not unequally yoked together with unbelievers: for what participation is there to righteousness and unrighteousness? or what fellowship has light unto darkness?