This is what comes to mind - I think it fits. Acts 18: 24Meanwhile a Jew named Apollos, a native of Alexandria, came to Ephesus. He was a learned man, with a thorough knowledge of the Scriptures. 25He had been instructed in the way of the Lord, and he spoke with great fervor and taught about Jesus accurately, though he knew only the baptism of John. 26He began to speak boldly in the synagogue. When Priscilla and Aquila heard him, they invited him to their home and explained to him the way of God more adequately.
These church folks heard the preacher, Apollos,(and they were apparently more grounded in their "theology" than he) and took him away privately to teach him. So I think this shows that the sheep really need to know the word and the way of the Savior strongly, on their own.