Examples include the Gnostics ( who had believed in an esoteric dualism ) , the Ebionites ( who venerated Christ 's blood relatives ) , and the Arians . Examples include the Gnostics ( who had believed in an esoteric dualism called gnosis ) , the Ebionites ( who denied the divinity of Jesus ) , and the Arians ( who believed Jesus said `` My Father is greater than I '' ) .