His heart is established. Almost a repetition of the phrase in Psalms 112:7, "his heart is fixed"—seemingly, therefore, superfluous, but really emphasizing the point, which is of great moment (see the comment of Hengstenberg, and compare the "just man" of Horace, 'Od.
,' 3.3, 2. 1-8). He shall not be afraid. "Perfect love casteth out fear" (1 John 4:18). He who feels himself always and altogether in the hands of a loving Father cannot be afraid of what is about to befall him.
Until he see his desire upon his enemies. He knows that his enemies have no real power to harm him, and that ultimately he will "see his desire upon them;" i.e. will triumph over them (see Psalms 54:7; Psalms 59:10, etc.
).