en_tn_condensed/psa/079/012.md

Pay back ... the insults ... Lord

Asaph speaks of the evil deeds that the neighboring countries did against Israel as "insults," and as if they were physical items. He asks the Lord to count those deeds, and for every one that the neighboring countries committed, he asks the Lord to have someone do seven evil deeds to the neighboring countries. (See: rc://en/ta/man/translate/figs-metaphor)

Pay back

"Return" or "Give back"

into the laps

onto their knees and thighs as they are sitting. This is a metaphor for "directly and personally." (See: rc://en/ta/man/translate/figs-metaphor)