Cross reference
John 9:33
33 If this man were not from God, he could do nothing.
John 9:16
16 Some therefore of the Pharisees said, This man is not from God, because he keepeth not the sabbath. But others said, How can a man that is a sinner do such signs? And there was division among them.
John 3:2
2 the same came unto him by night, and said to him, Rabbi, we know that thou art a teacher come from God; for no one can do these signs that thou doest, except God be with him.
Acts 5:38-39
38 And now I say unto you, Refrain from these men, and let them alone: for if this counsel or this work be of men, it will be overthrown:
39 but if it is of God, ye will not be able to overthrow them; lest haply ye be found even to be fighting against God.