John Gill Commentary Psalms 109:15

"Let them be before Jehovah continually, That he may cut off the memory of them from the earth;" — Psalms 109:15 (ASV)

Let them be before the Lord continually And not cast behind his back, or into the depths of the sea, never to be seen more, as sins are when forgiven; but be always in sight, as loathsome and abominable, and causing those that committed them to be abhorred for them; and be before him, as a Judge, to examine them, the nature and kind of them, and to condemn and punish for them; see (Exodus 20:5) . The Targum is, ``let them be before the Word of the Lord always;'' see (Hebrews 4:13) .

That he may cut off the memory of them from the earth ; so that they may not be remembered with any applause, or their name spoken of with any commendation; see (Job 18:17) .