What does the Bible teach about the Triune God?
Trusting in or worshiping more than one god is explicitly condemned throughout the Bible (e.g., Ex. 20:3). There is only one true God (Deut. 4:35, 39; 6:4; Isa. 43:10; 44:6, 8; 45:18; 46:9; 1 Cor. 8:4; James 2:19), who exists eternally in three persons—the Father, the Son, and the Holy Spirit (Matt. 28:19; 2 Cor. 13:14).