“Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know:” Acts 2:22
The “miracles and wonders and signs which God did” through Jesus, proved He was sent from God. If God did miracles through Jesus, who was the perfect Son of God, to prove He was from God, then how much more do we the church need God to perform “miracles and wonders and signs” through us to prove to the world we are from God.