This is why commandments are given to us. They tell us how we can continue to receive and renew a continuing conversion to Christ's way of life. Commandments are not a burden to bear but a roadmap to follow. They are not a measuring stick to judge and then abuse others. It is a light for us to follow.
These explanations by Christ are beyond the question of "faith verses works" because Christ is telling us we act from our heart in faith, receive ordinances because of our faith, then have our hearts filled again. We proceed from grace to grace. This is how Christ received the fullness, and the only way we may receive the fullness. (D&C 93: 12-14, 19-29.)