1 Timothy 4:2

2inἐνhypocrisyὑποκρίσειof speakers of liesψευδολόγων,having been searedκεκαυστηριασμένωνin theτὴνownἰδίανconscienceσυνείδησιν,

in the hypocrisy of liars, having been seared in [their] own conscience,