Matthew 3:1-12 presents John the Baptist preaching repentance. He came to prepare the way of the Lord. John the Baptist baptized in water for repentance. He prophesied that Jesus would baptize in the Holy Spirit and fire. John the Baptist is still under the law but prepares the way for Jesus
In stark contrast to the New Testament gospel Exodus 21 and Exodus 22 contain regulations on servanthood and slavery, penalties for manslaughter and personal injuries, all Mosaic law.