A short but powerful video of the words of Thomas Brooks (1608-1680) an English Puritan preacher who writes on the need to mortify or kill your sin based on Paul's writing to the Colossians from Colossians 3:5
Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry: - Colossians 3:5