“To separate God’s law from grace is to misapply both law and grace.”
Everyone who sins breaks the law; in fact, sin is lawlessness (1 John 3:4). For all have sinned and stand condemned before God (Rom. 3:23). The wages of sin is death (Rom. 6:23). Thus, all deserve God’s wrath for breaking His law.
Thankfully, Jesus took our punishment on the cross in order to satisfy God’s righteous anger toward sin. Because God upholds His law, He must punish all sin, including yours and mine. To absolve us from the curse of the law, God made Jesus, who knew no sin, to become sin for us, so that we could be made right with God through Christ (Isaiah 53; 2 Cor. 5:21).
Not only did Jesus die for our sins, but he lived in complete obedience to the law. That’s why there is no condemnation to those who are in Christ. Why? Because what the law was powerless to do since it was weakened by the flesh, God did by sending His own Son in the likeness of sinful flesh to be a sin offering. And so he condemned sin in the flesh, in order that the righteous requirement of the law might be fully met in us (Rom. 8:4).
Therefore, the only way to understand grace is in light of the law. The law says, “You are guilty.” But God says, “even though your sins are as scarlet, I will make them white as snow (Isaiah 1:18). Essentially, the law magnifies grace.
Jesus also makes it clear the law is everlasting. “Don’t misunderstand why I have come. I did not come to abolish the law of Moses or the writings of the prophets. No, I came to accomplish their purpose (Matt. 5:17). And He did. He perfectly obeyed the law and that’s the only reason we are made righteous before a holy God.