While it remained, was it not your own? and after it was sold, was it not in your own power? why have you conceived this thing in your heart? you have not lied unto men, but unto God. – Acts 5:4
You have not lied to men, but to God:
First, we understand that he called the Holy Spirit the Spirit of the Lord (vv 3;9). Then, since he mentioned first the Holy Spirit and added: “You have not lied to men but unto God,” you must necessarily either understand the oneness of the Godhead in the Holy Spirit, since when the Holy Spirit is tempted a lie is told to God; or, if you endeavour to exclude the oneness of the Godhead, you yourself according to the words of Scripture certainly believe Him to be God.
- St. Ambrose of Milan