Exodus 3:18

Exo. 3:18. "And you shall say unto him, The Lord God of the Hebrews hath met with us, and now let us go, we beseech thee, three days' journey into the wilderness, that we may sacrifice to the Lord our God." That is, inform Pharaoh that your God that hath met with you, has instructed you to ask this of him. In this Pharaoh was not treated with any falsehood or unjust deceit. The utmost that can be supposed by any objector is, that here is an implicit promise, that if he would let them go three days' journey into the wilderness, they would return again after they had there served their God, and received the revelation of his will, which he should there make to them. But if there had been, not only an implicit, but an express, promise of this, it might have been consistent with God's real design, and the revelations of it that he had made to Moses, and by him to the people, without any false or unjust dealing. God knew that Pharaoh would not comply with the proposal, and that his refusal would be the very occasion of their final deliverance. He knew he would order it so, and therefore might reveal this as the event that should finally be brought to pass, and promise it to his people, though he revealed not to them the exact time and particular means and way of its accomplishment. Conditional promises or threatenings of that which God knows will never come to pass, and which he has revealed will not come to pass, are not inconsistent with God's perfect justice and truth; as when God promised the prince and people of the Jews in Jeremiah's time, that the city should surely be preserved, and never should be destroyed by its enemies, if they would repent and turn to God, and cleave to him, though it had been often most expressly and absolutely foretold that Jerusalem should be destroyed by the Chaldeans; and as the apostle Paul denounced unto the mariners that were about to flee out of the ship, that if they did, the ship's crew must perish, though he had before in the name of God foretold and promised that there should be the loss of no man's life, but only of the ship.