What is heart idolatry? This is the first critical question of this chapter, and it needs biblical clarification. If indeed the heart is deceptive, full of self-righteous rationalizations, then we need to go deep in our understanding of it to fully expose sin and live holy lives before the Lord. Christ died for us, not only to give us eternal life but so that “those who live might no longer live for themselves but for him who for their sake died and was raised” (2 Cor.