True Christianity requires more than correct doctrine—it produces a burning heart for Christ. The Lord's letter to Laodicea speaks against spiritual complacency, where believers are neither cold nor hot in their devotion. When we grow lukewarm, Jesus stands at the door of His own Church, knocking and seeking renewed fellowship. Although Christ owns the Church, He pictures Himself outside of it and knocking to come in. The path to spiritual fervency comes through an individual hearing His voice and responding to let Him come in to His own Church. When an individual responds to the call of Christ, the Lord answers by coming up to that one and creating fellowship with him or her and deepening their relationship with Himself, allowing His presence to rekindle their first love.