(5) Go on before the people.--The people were probably in no condition to move. They were exhausted. with a long day's march--weary, faint, nerveless. Moses and the elders, who probably journeyed on asses, would have more strength.

Take with thee of the elders--as witnesses. Each miracle had an educational value, and was designed to call forth, exercise, and so strengthen the faith of the people.

The rock in Horeb must necessarily designate some particular rock of the Horeb region already known to Moses during his previous stay in these parts. It cannot possibly, however, have been the traditional "rock of Moses" in the Seil Leja, under Ras Sufsafeh, since that rock is a long day's journey from the site of Rephidim, near which the miracle must have been performed. (See Stanley, Sinai and Palestine, pp. 46-48.)

Verse 5. - Go on before the people. "Leave the people," i.e., "where they are, in Rephidim, and go on in front of them, with some of the elders as witnesses, that the miracle may be sufficiently attested." On the other occasion, when water was brought forth out of the rock (Numbers 20:8-11), it was done in the presence of the people. Perhaps now there was a real danger of their stoning Moses, had he not quitted them. Thy rod with which thou smotest the river. See above, Exodus 7:20.

17:1-7 The children of Israel journeyed according to the commandment of the Lord, led by the pillar of cloud and fire, yet they came to a place where there was no water for them to drink. We may be in the way of duty, yet may meet with troubles, which Providence brings us into, for the trial of our faith, and that God may be glorified in our relief. They began to question whether God was with them or not. This is called their tempting God, which signifies distrust of him after they had received such proofs of his power and goodness. Moses mildly answered them. It is folly to answer passion with passion; that makes bad worse. God graciously appeared to help them. How wonderful the patience and forbearance of God toward provoking sinners! That he might show his power as well as his pity, and make it a miracle of mercy, he gave them water out of a rock. God can open fountains for us where we least expect them. Those who, in this wilderness, keep to God's way, may trust him to provide for them. Also, let this direct us to depend on Christ's grace. The apostle says, that Rock was Christ, 1Co 10:4, it was a type of him. While the curse of God might justly have been executed upon our guilty souls, behold the Son of God is smitten for us. Let us ask and receive. There was a constant, abundant supply of this water. Numerous as believers are, the supply of the Spirit of Christ is enough for all. The water flowed from the rock in streams to refresh the wilderness, and attended them on their way towards Canaan; and this water flows from Christ, through the ordinances, in the barren wilderness of this world, to refresh our souls, until we come to glory. A new name was given to the place, in remembrance, not of the mercy of their supply, but of the sin of their murmuring: Massah, Temptation, because they tempted God; Meribah, Strife, because they chid with Moses. Sin leaves a blot upon the name.And the Lord said unto Moses,.... Out of the pillar of cloud:

go on before the people, lead them on nearer to Mount Sinai or Horeb, within sight of which they now were. Jarchi adds, by way of explanation, "and see if they will stone thee"; fear not, go on boldly, no harm shall come to thee:

and take with thee of the elders of Israel; some of them for a witness, as the above writer observes, that they may see that by thine hand water comes out of the rock, and may not say there were fountains there from the days of old. These were taken, because they were the principal men among the people, who, as they were men of years, so of prudence and probity, and whose veracity might be depended upon; and since so great a multitude could not all of them see the miracle, the rock being smote, and the water only flowing in one part of it, and perhaps the road to it but narrow, it was proper some persons should be singled out as witnesses of it, and who so proper as the elders of the people?

and thy rod, wherewith thou smotest the river, take in thine hand and go; wherewith the river Nile was smitten, and the water became blood, when Moses and Aaron first went to Pharaoh; and which, though smitten by Aaron, yet being with the rod of Moses, and by his order, is attributed to him; or else with which the Red sea was smitten by Moses, and divided; which being but a narrow channel, or an arm of the sea, might be called a river: and this circumstance is observed, as the afore mentioned writer thinks, to let the Israelites know, that the rod was not, as they thought, only designed for inflicting punishment, as on Pharaoh and the Egyptians, but also for bringing good unto them; and when they saw this in his hand, by which so many miracles had been wrought, they might be encouraged to hope that something was going to be done in their favour, and that water would be produced for them to drink.