John 5:36

(vi. de Trin. c. 27) The Only-begotten God shows Himself to be the Son, on the testimony not of man only, but of His own power. The works which He does, bear witness to His being sent from the Father. Therefore the obedience of the Son and the authority of the Father are set forth in Him who was sent.

"But I have greater witness than that of John." "For had ye been willing to admit faith according to the (natural) consequence of the facts, I would have brought you over by My works more than he by his words. But since ye will not, I bring you to John, not as needing his testimony, but because I do all 'that ye may be saved.' For I have greater witness than that of John, namely, that from My works; yet I do not merely consider how I may be made acceptable to you by credible evidence, but how by that (of persons) known to and admired by you." Then glancing at them and saying that they rejoiced for a season in his (John's) light, He declared that their zeal was but temporary and uncertain.

Having then proved them altogether unworthy of forgiveness, He went on to say, "I have greater witness than that of John." "What is that?" It is that from His works. "For the works," He saith, "which the Father hath given Me to finish, the same works that I do bear witness of Me that the Father sent Me." By this He reminded them of the paralytic restored, and of many other things. The words perhaps one of them might have asserted were mere boast, and said by reason of John's friendship towards Him, (though indeed it was not in their power to say even this of John, a man equal to the exact practice of wisdom, and on this account admired by them,) but the works could not even among the maddest of them admit this suspicion; therefore He added this second testimony, saying, "The works which the Father hath given Me to finish, the same works that I do bear witness of Me that the Father sent Me."

In this place He also meeteth the accusation respecting the violation of the Sabbath. For since those persons argued, "How can he be from God, seeing that he keepeth not the Sabbath?", therefore He saith, "Which My Father hath given unto Me." Yet in truth, He acted with absolute power, but in order most abundantly to show that He doth nothing contrary to the Father, therefore He hath put the expression of much inferiority. Since why did He not say, "The works which the Father hath given Me testify that I am equal to the Father"? for both of these truths were to be learned from the works, that He did nothing contrary, and that He was equal to Him who begat Him; a point which He is establishing elsewhere, where He saith, "If ye believe not Me, believe the works: that ye may know and believe that I am in the Father and the Father in Me." In both respects, therefore, the works bare witness to Him, that He was equal to the Father, and that He did nothing contrary to Him. Why then said He not so, instead of leaving out the greater and putting forward this? Because to establish this was His first object. For although it was a far less thing to have it believed that He came from God, than to have it believed that God was equal with Him, (for that belonged to the Prophets also, but this never,) still He taketh much pains as to the lesser point, as knowing that, this admitted, the other would afterwards be easily received. So that making no mention of the more important portion of the testimony, He putteth its lesser office, that by this they may receive the other also...

That He enlightens the blind, that He opens the deaf ear, looses the mouth of the dumb, casts out devils, raises the dead; these works bear witness of Christ.