(18) They shall hearken.--The pronoun "they" refers to "the elders" of Exodus 3:16. For the fulfilment of the promise, see Exodus 4:29-31. The elders appear to have been persuaded easily, and at once.

Thou and the elders.--We are not told in Exodus 5 that the elders did present themselves before Pharaoh; but it is possible that they may have done so. Or Moses and Aaron, who spoke in their name, and by their authority, may have been regarded as sufficiently representing them.

The Lord God of the Hebrews hath met with us.--Heb., Jehovah, the God of the Hebrews. Pharaoh would readily comprehend this statement. He would quite understand that the Hebrews, being of a different race from the Egyptians, had a God of their own, and that this God would from time to time give intimations to them of His will. Such intimations were supposed to be given to the Egyptian kings occasionally by their gods.

Three days' journey.--The necessity for withdrawing to so great a distance arose from that remarkable peculiarity in the Egyptian religion, the worship of animals. Cows, or at any rate, white cows, were sacred throughout the whole of Egypt, and to kill them was regarded as a crime of the deepest dye. Sheep were sacred to the inhabitants of one nome or canton, goats to those of another (Herod. ii. 42). Unless the Hebrews retired to a place where there were no Egyptians, they would be unable to perform their sacred rites without danger of disturbance, and even bloodshed. (See below, Exodus 8:26.)

The wilderness.--"The wilderness" to those who dwelt in Goshen was the broad sandy and rocky tract which intervened between Egypt and Palestine--the modern El-Tih--a desert reckoned at three days' journey across (Herod. iii. 5). It is "a vast limestone plateau of irregular surface, projecting wedge-fashion into the peninsula of Sinai, just as Sinai itself projects into the Red Sea. It terminates in a long cliff or encampment, steep and abrupt on the south-western side, gradually falling away towards the south-east."--(Our Work in Palestine, p. 275.)

That we may sacrifice.--It is idle to speculate whether, if Pharaoh had granted the request, the Israelites would have returned to Egypt after sacrificing. God knew that he would not grant it.

Verse 18. - They shall hearken to thy voice. Moses thought they would despise him - turn a deaf ear to his words - look upon him as unworthy of credit. But it was not so. The hearts of men are in God's hands, and he disposed those of the elders to receive the message of his servant, Moses, favourably, and believe in it. (See Exodus 4:29-31.) Thou shalt come, thou and the elders of Israel, unto the king of Egypt. This future is perhaps one of command rather than of prophetic announcement. The elders do not seem to have actually made their appearance before Pharaoh. (See Exodus 5:1-4.) They may, however, have authorised Moses and Aaron to speak in their name. The Lord God of the Hebrews hath met with us. Through our representative Moses. "Met with us" is undoubtedly the true meaning. That we may sacrifice. There was reticence here, no doubt, but no falseness. It was a part of God's design that sacrifice, interrupted during the sojourn in Egypt for various reasons, should be resumed beyond the bounds of Egypt by His people. So much of his purpose, and no more, he bade Moses lay before Pharaoh on the first occasion. The object of the reticence was not to deceive Pharaoh, but to test him.

3:16-22 Moses' success with the elders of Israel would be good. God, who, by his grace, inclines the heart, and opens the ear, could say beforehand, They shall hearken to thy voice; for he would make them willing in this day of power. As to Pharaoh, Moses is here told that petitions and persuasions, and humble complaints, would not prevail with him; nor a mighty hand stretched out in signs and wonders. But those will certainly be broken by the power of God's hand, who will not bow to the power of his word. Pharaoh's people should furnish Israel with riches at their departure. In Pharaoh's tyranny and Israel's oppression, we see the miserable, abject state of sinners. However galling the yoke, they drudge on till the Lord sends redemption. With the invitations of the gospel, God sends the teaching of his Spirit. Thus are men made willing to seek and to strive for deliverance. Satan loses his power to hold them, they come forth with all they have and are, and apply all to the glory of God and the service of his church.And they shall hearken to thy voice,.... The elders of Israel, who would give credit to his commission, attend to what he said, and obey his orders, and follow the directions that he should give them, and not slight and reject him, as some had done before:

and thou shall come, thou, and the elders of Israel, unto the king of Egypt: the elders of Israel in a body, and Moses at the head of them; though we do not read of their approaching to Pharaoh, and addressing him in such a manner, only of Moses and Aaron applying to him:

and you shall say unto him, the Lord God of the Hebrews hath met with us; with one of them, who had reported to the rest what he had said; the children of Israel are here called Hebrews, because that seems to be a name the Egyptians most commonly called them, and by which they were best known to them, see Genesis 39:14.

and now let us go, we beseech thee, three days' journey into the wilderness; the wilderness of Sinai and Arabia, and to Mount Horeb in it; which from the borders of Egypt was three days' journey going the direct road, but the Israelites going somewhat about, and stopping by the way, did not get to it until the third month of their going out of Egypt, Exodus 19:1,

that we may sacrifice to the Lord God; in the place where he had appeared to a principal man among them, and where they would be in no danger of being insulted and molested by the Egyptians. Some think the reason of this request they were directed to make, to sacrifice out of the land of Egypt, was, because what they sacrificed the Egyptians worshipped as gods, and therefore would be enraged at such sacrifices; but for this there is no sufficient foundation; See Gill on Genesis 46:34, rather the design was under this pretence to get quite away from them, they being no subjects of the king of Egypt, nor had he a right to detain them; nor were they obliged to acquaint him with the whole of their intentions, and especially as they were directed of God himself to say this, and no more, and which being so reasonable, made Pharaoh's refusal the more inexcusable.