Verily, verily, I say unto you, He that believes on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father.
All Commentaries on John 14:12 Go To John 14
Theophilus of Antioch
AD 184
This is an explanation of the doctrine of miracles. It is by prayer, and invocation of His name, that a man is able to work miracles.
Observe the order in which the glorifying of the Father comes. In the name of Jesus miracles were done, by which men were made to believe the Apostles’ preaching. This brought them to the knowledge of the Father, and thus the Father was glorified in the Son.