The early church devoted themselves to what was most important; to the apostles' teaching and the fellowship, to the breaking of bread, and the prayers. Their devotion is both personal towards the Lord, within their households, and also as a congregation of faith. The devotion of a believer is both fueled by and encourages the body of Christ. Ultimately our devotion is limited, but God's is not. He's devoted completely and perfectly to Himself, to His mission, and to us.