Paul repeatedly expresses concern for the minds of believers who may be “led astray” by belief in a different Jesus, a different spirit, and a different gospel (2 Cor. 11:3–4; cf. Gal. 1:6–7). Elsewhere, he asserts that believers will have true “unity of the faith” only when they will “no longer be children, tossed to and fro by the waves and carried about by every wind of doctrine, by human cunning, by craftiness in deceitful schemes” (Eph. 4:13–14).