Speaking in tongues is the initial sign of receiving the Spirit, but by itself it does not prove the abiding presence of the Spirit. Many more important evidences of the Spirit’s abiding presence exist, such as the fruit of the Spirit (Galatians 5:22-23). In particular, love is the ultimate test of true discipleship (John 13:34-35). The true child of God will love God, obey His commandments, walk after the Spirit, and be led by the Spirit (I John 2:3-5; Romans 8:4, 14). In the absence of these characteristics, speaking in tongues does not guarantee that the Spirit dwells in one and controls his life.