She is far from ever doing him evil, she does him only good all her life long; her love is not dependent on freaks, it rests on deep moral grounds, and hence derives its power and purity, which remain ever the same. גָּמַל signifies to accomplish, to perform. To the not assimilated form גְּמָלַתְהוּ, cf. יִסְּרַתּוּ, 1b.