Jamieson, Fausset and Brown on 1 Peter 3:22

22. (Psa 110:1; Ro 8:34, 38; 1Co 15:24; Ep 1:21; 3:10; Col 1:16; 2:10-15). The fruit of His patience in His voluntary endured and undeserved sufferings: a pattern to us, 1Pe 3:17, 18.

gone--(Lu 24:51). Proving against rationalists an actual material ascension. Literally, "is on the right hand of God, having gone into heaven." The oldest manuscripts of the Vulgate and the Latin Fathers, add what expresses the benefit to us of Christ's sitting on God's right hand, "Who is on the right hand of God, having swallowed up death that we may become heirs of everlasting life"; involving for us A STATE OF LIFE, saved, glorious, and eternal. The Greek manuscripts, however, reject the words. Compare with this verse Peter's speeches, Ac 2:32-35; 3:21, 26; 10:40, 42.