Deuteronomy 7:10

And repayeth them that hate him to their face. The phrase, "to their face "( אל פָנָיו , to their faces), has been variously explained. It has been taken as meaning, instantly, statim, hand cunctanter (Vulgate, Gesenius); openly, manifestly, palam (Grotius, Calvin, Michaelis); during life, in hac vita (Targum, Vatab.); in their presence, in their own sight ( LXX ; κατὰ πρόσωπον : Rosenmüller). The last seems the best. פָנֶהּ signifies properly, front, and אֶל פָנִים , to the front, before, in presence (cf. Le Deuteronomy 9:5 ; Exodus 23:17 ). The hater of God should be repaid, so that the man should himself see and feel that he had been smitten of God (cf. Isaiah 65:6 ; Job 34:11 ; Ps 62:13). And this retribution should come speedily: He will not be slack to him that hateth him; i . e . he will not delay to repay him.