We are strictly monotheistic. There is one God in whom are three eternal, distinct, simultaneous persons — the Father, the Son (Jesus Christ), and the Holy Spirit. All three are the one God, coeternal, coequal, etc., yet there is only one God, not three gods, and not one person who took three modes, offices, or forms. (Isaiah 44:6,8; 45:5; Gen. 1:26-27; 3:22; Matt. 3:17; 28:19; Luke 10:35; 2 Cor. 13:14). The Godhead is transcendent: timeless, spaceless, immaterial; also personal, volitional and uncreated (existing eternally).
See also The Trinity.