'Cleansing' in the Bible

and said to him, "See you say nothing to anybody, but go show yourself to the priest, and offer for your cleansing the things which Moses commanded, for a testimony to them."

He commanded him to tell no one, "But go your way, and show yourself to the priest, and offer for your cleansing according to what Moses commanded, for a testimony to them."

He made no distinction between us and them, cleansing their hearts by faith.

For he who lacks these things is blind, seeing only what is near, having forgotten the cleansing from his old sins.