Proverbs 14:14 The backslider in heart shall be filled with his own ways: and a good man shall be satisfied from himself.
Titus 1:16 They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
Matthew 15:8 This people draweth nigh unto me with their mouth, and honoureth me with their lips; but their heart is far from me.
Rev. 3:15-16  I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.  So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.