Verb: To make something pure. To remove all contaminants and restore something to its original unaltered state. 2: to make someone spiritually pure. Examples: in the Bible. 1: 2 Corinthians 7:1 Therefore, since we have these promises, dear friends, let us purify ourselves from everything that contaminates body and spirit, perfecting holiness out of reverence for God. 2: 1 John 1:9 If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness.