Take heed to yourselves and to all the flock of which the holy Spirit has appointed you guardians; shepherd the church of the Lord which he has purchased with his own blood.
Though by this time you should be teaching other people, you still need someone to teach you once more the rudimentary principles of the divine revelation. You are in need of milk, not of solid food.
Now in the local church at Antioch there were prophets and teachers, Barnabas, Symeon (called Niger) and Lucius the Cyrenian, besides Manaen (a foster-brother of Herod the tetrarch) and Saul.