That is the essential meaning of a prophet--one who speaks for God. Exodus 4:16 is instructive, for it shows that as Aaron was to be "a mouth" to Moses, while Moses was "as God" to Aaron, so the prophet was God's mouthpiece or spokesman. Of course a prophet was often a person who also spoke before--one, that is, who predicted what should come to pass. And the fact that his words were actually fulfilled became a proof of his divine commission, both in theory, Deut. 18:22, and in practice, Isa. 44:26. But the bulk of the prophets' messages were, like those of Samuel, addressed to their own time. They were preachers of righteousness, warners against sin, the nation's conscience, and the Lord's remembrancers. It is the chief glory of Samuel that he was not only first in the long fine of the Hebrew prophets--the most remarkable succession of men the world has ever seen--but also the founder of the prophetic order. By the prophetic order we mean the prophets as a group conscious of their solidarity, the identity of their principles and aim. Samuel gathered about his dominating personality those persons who were sympathetic with him in spirit, and who shared with him some of that power of testimony which "the word of Jehovah" conferred. They seem to have lived together, I Sam. 19:20, in communities similar to those two centuries later under Elijah and Elisha. They used musical instruments in their devotions, which were public as well as private. Ch. 10:5. They were the center of patriotic zeal as well as of religious effort. In fact, the belief in Israel's God was so evidently the bond that bound Israel together, that for the common man patriotism and religion were in danger of being regarded as one and the same thing. It is not surprising, therefore, that out of Samuel's time and from the forces which Samuel set in motion, there came two movements which changed the course of the nation's history: an outward movement for independence, and an inward movement for monarchy. A revival of religion could not fail to rouse the subjected Hebrews against their oppressors, the Philistines. The reverses they suffered in battle against their better armed and better led enemies put it into their minds to set up a king, "like all the nations." Samuel, as the national leader, was God's agent in selecting, consecrating, and establishing the first king. He chose Saul, of the tribe of Benjamin, a man of heroic proportions though of modest demeanor. Ch. 9:2, 21. His choice met the popular approval, at first with general and outward acquiescence, though with much inward reserve and individual revolt; but after his first successful campaign with universal loyalty. Ch. 10:27; 11:12-15.