For a long time, the people of Israel did not worship the true God or listen to priests who could teach them about God. They refused to obey God's Law.
The church at Antioch had several prophets and teachers. They were Barnabas, Simeon, also called Niger, Lucius from Cyrene, Manaen, who was Herod's close friend, and Saul.
Look after yourselves and everyone the Holy Spirit has placed in your care. Be like shepherds to God's church. It is the flock that he bought with the blood of his own Son.
By now you should have been teachers, but once again you need to be taught the simplest things about what God has said. You need milk instead of solid food.