2 Corinthians 6:14-18

Be not unequally yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? or what communion hath light with darkness?

Revelation 21:8

But the fearful, and unbelieving, and abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, their part is in the lake that burneth 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 the fearful, and unbelieving, and abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, their part is in the lake that burneth with fire and brimstone, which is the second death.

And hath

2 Corinthians 6:14
Be not unequally yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? or what communion hath light with darkness?