Law (what God requires):
(One of 613 commandments in the Bible)
"Law is to be called, and to be, anything that refers to what we are to do. On the other hand, the Gospel, or the Creed, is any doctrine or word of God which does not require works from us and does not command us to do something, but bids us simply accept as a gift the gracious forgiveness of our sins and everlasting bliss offered us."
"Gospel is a word that promises blessing to those who are cursed, righteousness to the unrighteous, and life to the dead.
The Gospel does not require anything good that man must furnish: not a good heart, not a good disposition, no improvement of his condition, no godliness, no love either of God or men. It issues no orders, but changes a man. It plants love into his heart and makes him capable of all good works. It demands nothing, but it gives all."