who is at the right hand of God, having gone into heaven, angels and authorities and powers being made subject to him.
angels and authorities and powers had been subjected to Him -- This seems to refer to angelic ranks (cf. Romans 8:38-39; 1 Corinthians 15:24; Ephesians 1:20-21, Ephesians 6:12; Colossians 2:15; ...). It shows Christ’s complete authority and power over the spiritual realm. - Utley