1 John 2:21 affirms that genuine believers already know the truth—not because of special insight, but because they abide in Christ, who is the revealed reality of God. This message explores the biblical meaning of truth (alētheia), showing that true worship must be grounded in God’s self-revelation. Pastor Catlan preaches from both 1 John and the Gospel of John to contrast truth with deception and call the church to worship in Spirit and truth.