A.T. Robertson Commentary Acts 7:37

"This is that Moses, who said unto the children of Israel, A prophet shall God raise up unto you from among your brethren, like unto me." — Acts 7:37 (ASV)

Like unto me (ως εμε). This same passage Peter quoted to the crowd in Solomon's Porch (Acts 3:22). Stephen undoubtedly means to argue that Moses was predicting the Messiah as a prophet like himself who is no other than Jesus so that these Pharisees are in reality opposing Moses. It was a neat turn.