19. The heretics when beset by authoritative passages in Scripture are wont only to grant that the Son is like the Father in might while they deprive Him of similarity of nature. This is foolish and impious, for they do not understand that similar might can only be the result of a similar nature. For a lower nature can never attain to the might of a higher and more powerful nature. What will the men who make these assertions say about the omnipotence of God the Father, if the might of a lower nature is made equal to His own? For they cannot deny that the Son’s power is the same, seeing that He has said What things soever the Father doeth, these also doeth the Son likewise.