Will you steal, murder, commit adultery, swear falsely, burn incense to Baal, and walk after other gods whom you do not know, and then come and stand before Me in this house which is called by My name, and say, “We are delivered to do all these abominations”? (Jeremiah 7:9-10)
In the Name + of Jesus. Amen. There is one message and Scripture, and it doesn’t matter if you’re reading the Old or New Testament. There is free remission of sins in Jesus the Messiah, who is the eternal Son of the Father who lives and reigns in union with the Father and the Holy Spirit, one God, now and forever. God’s grace, mercy, love, and forgiveness is 100% gratis. It’s free. It’s a gift. You are forgiven by Christ’s death and resurrection. If anyone is saved they are saved through faith in Jesus. The Old Testament saints were saved through faith in the Messiah who was to come; we are saved through faith in that same Messiah or Christ, who has come: Jesus.
But Old Adam wants to take away the free gift of salvation that your New Man, who lives in Christ and Christ in Him, clings to. Old Adam does it in two ways.
First, he tries to make salvation not free. He becomes Old Adam, the prude, and says, “It can’t be that free! It can’t be that much grace because then people will just go on sinning! They’ll use grace as license to do wicked things. That’s too much Jesus! There needs to be law to keep Christians in line.” The second way is for him to become Old Adam, the party boy. He’ll say, “Let’s sin so grace may abound! I can do whatever I want. It doesn’t matter if it’s sinful because Jesus will forgive me! If God’s in the forgiving business, I gotta give Him something to do!”
Whether he’s a prude or a libertine, Old Adam is going to try and take the free gift of salvation away by misusing the Law: either the Law of “such free grace will make people sin more” or the Law of “I can live and do whatever because of Jesus!” But Christ has drowned your Old Adam at the font. He kills him daily with His Word and He strengthens your New Man in Absolution and with His Body and Blood. Salvation is free in Christ Jesus. Your Old Adam can’t change that. In the Name + of Jesus. Amen.
Not the labors of my hands Can fulfill Thy Law’s demands; Could my zeal no respite know, Could my tears forever flow, All for sin could not atone; Thou must save, and Thou alone. (Rock of Ages, Cleft for Me, LSB 761:3)