Without a Title, as are all the Psalms in Book IV, except 90, 101, 103. See notes on p. 809. If by Moses, then the "I" of the members (Psa_91:2), and (Psa_91:9 -), may be Joshua, a type of Messiah. Compare Deu_1:38; Deu_3:28; Deu_31:7, Deu_31:23. If Moses were the author (this Psalm following his), then all the Scriptures quoted in Matthew 4 were from his writings. Note the references to Deu_32:1-14. It is not David's, for we have no more right to insert the name of "David" where it is not written, than to take it out where it is.