A sign of a healthy Church is their adherence to the Word of God. The Word of God is the foundation and starting point for every aspect of the Christian life. The apostles’ teaching has been preserved for us in the New Testament so that we have God’s instruction. One can hardly over-emphasize the importance of sound, biblical teaching. The teaching of the Apostles had already circulated to the seven Churches of Revelation including the Church at Ephesus. So that Church was well aware of the inspired Word of God.