The image of keys (plural) perhaps suggests not so much the porter, who controls admission to the house, as the steward, who regulates its administration (Is 22:22, in conjunction with 22:15). The issue then is not that of admission to the church (which is not what the kingdom of heaven means; see pp. 45-47) but an authority derived from a delegation of God's sovereignty.
Craig S. KeenerAny student of the New Testament eager to understand its Greco-Roman setting will profit greatly from this excellent book. I commend it highly for its up-to-date perspectives and usefulness. Jeffers writes with a breadth of expertise on the Greco-Roman world that few New Testament specialists can match.
Craig S. KeenerThe keeper of the keys was one of the most important roles a household servant could hold (Mark 13:32-34). A higher official held the keys in a royal kingdom (Is 22:22) and in God's house, the temple.
Craig S. Keener