John 9:33

"If this man had not come of God he could have done nothing."

John 3:2

This man came to Jesus by night, and said to him. "Rabbi, we know that you are a teacher sent from God; for no man can do these signs which you are continually doing, unless God is with him."

John 9:16

Then some of the Pharisees began to say, "This man in not from God, because he does not keep the Sabbath." But others said, "How can a man who is a sinner perform such signs?"

Acts 5:38-39

"And now, I say to you, hold aloof from these men. Let them alone; for if this scheme or work be of human origin it will come to nothing;

Treasury of Scripture Knowledge

Summary

If this man were not of God, he could do nothing.

Bible References

Were

John 9:16
Then some of the Pharisees began to say, "This man in not from God, because he does not keep the Sabbath." But others said, "How can a man who is a sinner perform such signs?"
John 3:2
This man came to Jesus by night, and said to him. "Rabbi, we know that you are a teacher sent from God; for no man can do these signs which you are continually doing, unless God is with him."
Acts 5:38
"And now, I say to you, hold aloof from these men. Let them alone; for if this scheme or work be of human origin it will come to nothing;