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.