For he shall have judgment without mercy, that has showed no mercy; and mercy triumphs over judgment.
All Commentaries on James 2:13 Go To James 2
Augustine of Hippo
AD 430
He who judges without mercy will be judged without mercy. And in this sense only is the "same measure" to be understood, that the mercy which he did not show will not be shown to him, and that the judgment which he makes will be eternal, even though the thing judged cannot be eternal.