"When you've read this letter, make sure it's read in the Laodicean congregation, too," Colossians 4:16.
Paul! Why do you expect your letters to be read by others or by anyone at all? Who made you an arbiter of proper teaching? God. God did. God, through Christ. God chose Paul as his special envoy to announce Jesus as the Christ of God. Well. What's the proof? Paul's life spent in preaching Christ despite personal troubles, oppositions, beatings, jailings, miracle workings. He is a slave of Christ, his master. His master has ordered him, and he cannot but do and say what his Lord commands. So, what he has written is what the Lord Jesus wants the churches to read. And hear. And so we do.
We visit with a brother or sister today and share in the words Christ has spoken in the writings. And, in prayer together, we give thanks to God that we may know how to live out faith into eternity.