Matthew 9:3

Then some teachers of the Law. They scented heresy, and had come from Jerusalem to check into this "Prophet of Galilee" (Luke 5:17). The "Teachers of the Law" were the theologians, the official interpreters of Scripture, and also the judges, legislators and politicians therefore the "opinion-makers" of Israel. This man is talking against God. Because Christ forgave sins, which only God could do. If Jesus were only a human, they would have been right in this. But Jesus was the Eternal Logos (See 1 Timothy 3:16), This was the beginning of the opposition which would end in the Cross. On this charge of "talking against God," the Sanhedrin (Jewish Supreme Court) would condemn Jesus to death (Matthew 26:65).