When he shall be judged, let him be condemned: and let his prayer become sin.
When he shall be judged, let him be condemned - literally, 'let him go forth (from the trial pronounced) guilty,' even as he condemned me "without a cause" (Psalms 109:3).
And let his prayer become sin - i:e., be imputed to him as sin. This is consonant to the Word and will of God. Prayer without faith and repentance is sin (Isaiah 1:15; Psalms 66:18; Proverbs 28:9; Proverbs 15:29). God punishes the wicked by the wicked. Even unjust decisions, in spite of the wicked opponents of God, are overruled to subserve His purposes.