The Greek adjective bdeluktós means abominable, detestable, or utterly vile. It appears only once in the New Testament, in Titus 1:16, where Paul describes false teachers who claim to know God but by their actions deny Him, being 'detestable, disobedient and unfit for doing anything good.' The word carries the strongest possible sense of moral repugnance.
Bdeluktós in Titus 1:16 exposes the danger of empty profession. Those who claim to know God while living in contradiction to His character are not merely mistaken — they are, in God's sight, abominable. This is one of Scripture's starkest warnings against hypocrisy. The authentic Christian life is not a checklist of beliefs but a transformed life — faith expressed through deeds (James 2:18). What God finds most detestable is not outward sin alone but the denial of His nature through our lives.