3 occurrences across the corpus

King James Version

Mark 16:16

He that believeth and is baptized shall be saved; but he that believeth not shall be damned.

Romans 14:23

And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.

2 Thessalonians 2:12

That they all might be damned who believed not the truth, but had pleasure in unrighteousness.