Jeshurun is a diminutive — a term of endearment. Either “the child of the upright,” or “the beloved Israel.” The letters of the diminutive of Israel, if slightly abbreviated, would make “Jeshurun.” It is peculiar to Deuteronomy (here and in Deuteronomy 33:5; Deuteronomy 33:26) and Isaiah (Isaiah 44:2). Two of the Targums render the word by “Israel here.” The third retains the word itself. The LXX. translate it “the beloved one.”
Kicked. — Only in 1 Samuel 2:29 : “Wherefore kick ye at my sacrifice and mine offering... to make yourselves fat?"
Grown thick. — As Rehoboam said, “My little finger shall be thicker than my father’s loins.” Both these parallels illustrate the spirit of the verse.