Romans 5:11

And not only so, but we also joy--rather, "glory." in God through our Lord Jesus Christ, by--"through" whom we have now received the atonement--rather, "the reconciliation" (Margin), as the same word is rendered in Rom 5:10 and in Co2 5:18-19. (In fact, the earlier meaning of the English word "atonement" was "the reconciliation of two estranged parties") [TRENCH]. The foregoing effects of justification were all benefits to ourselves, calling for gratitude; this last may be termed a purely disinterested one. Our first feeling towards God, after we have found peace with Him, is that of clinging gratitude for so costly a salvation; but no sooner have we learned to cry, Abba, Father, under the sweet sense of reconciliation, than "gloriation" in Him takes the place of dread of Him, and now He appears to us "altogether lovely!" On this section, Note, (1) How gloriously does the Gospel evince its divine origin by basing all acceptable obedience on "peace with God," laying the foundations of this peace in a righteous "justification" of the sinner "through our Lord Jesus Christ," and making this the entrance to a permanent standing in the divine favor, and a triumphant expectation of future glory! (Rom 5:1-2). Other peace, worthy of the name, there is none; and as those who are strangers to it rise not to the enjoyment of such high fellowship with God, so they have neither any taste for it nor desire after it.

— Jamieson-Fausset-Brown Commentary (public domain)