Who being past feeling - Wholly hardened in sin. There is a total want of all emotion on moral subjects. This is an accurate description of the state of a sinner. He has no “feeling,” no emotion. He often gives an intellectual assent to the truth, But it is without emotion of any kind. The heart is insensible as the hard rock.
Have given themselves over - They have done it voluntarily. In Romans 1:24, it is said that “God gave them up.” There is no inconsistency. Whatever was the agency of God in it, they preferred it; compare notes on Romans 1:21.
Unto lasciviousness - see the notes on Romans 1:24-26.