 Matthew 28, verses 19 and 20, go into the whole world, make disciples of all nations, baptizing them, teaching them to observe all that I have commanded you. Jesus says in Luke 10, 16, to the apostles, he says, he who listens to you listens to me. He who rejects you rejects me. Those original teachers of the church. So if you reject the teaching authority of the church, you're rejecting Jesus, he says.