'Deceptive' in the Bible

Many of those who had become believers were coming, confessing and disclosing their [former sinful] practices.

Regarding your former way of life, you were taught to strip off your old nature, which is being ruined by its deceptive desires,

They will exploit you in their greed with deceptive words. Their condemnation, pronounced long ago, is not idle, and their destruction does not sleep.