Psalms 99:6

6. Moses and Aaron… Samuel Three leading representatives of the old dispensation.

Among his priests Not the only ones, but the most illustrious specimens of the class, as the preposition among, or with, denotes. The word כהן , ( kohehn,) priest, seems here to be used in a broader sense than usual, to denote a prince, or chief. In 2 Samuel 8:18 the word means chief ruler, prince; and in 1 Chronicles 18:17, it is explained by substituting another word, which also means first, or chief, minister. The same use of the word is seen in 2 Samuel 20:26, and elsewhere. Moses and Samuel, though of supreme civil dignity, were of the Levitical order, as well as Aaron, and on different occasions performed the functions of the priesthood in mediation, sacrifice, and purification of the people. See Exodus 17:15; Exodus 24:7-8; Lev 8:15-30 ; 1 Samuel 9:13; 1 Samuel 16:2-5. Their history is here cited to encourage prayer and trust in God, who, through these same means, would now, as of old, work salvation for his people. Particularly is this recital made to encourage faith in their leaders as God’s representatives.