II. He must go to the valley of the son of Hinnom, and deliver this message there; for the word of the Lord is not bound to any one place; as good a sermon may be preached in the valley of Tophet as in the gate of the temple. Christ preached on a mountain and out of a ship. This valley lay partly on the south side of Jerusalem, but the prophet's way to it was by the entry on the east gate—the sun gate (v. 2), so some render it, and suppose it to look not towards the sun-rising, but the noon sun—the potter's gate, so some. This sermon must be preached in that place, in the valley of the son of Hinnom, 1. Because there they had been guilty of the vilest of their idolatries, the sacrificing of their children to Moloch, a horrid piece of impiety, which the sight of the place might serve to remind them of and upbraid them with. 2. Because there they should feel the sorest of their calamities; there the greatest slaughter should be made among them; and, it being the common sink of the city, let them look upon it and see what a miserable spectacle this magnificent city would be when it should be all like the valley of Tophet. God bids him go thither, and proclaim there the words that I shall tell thee, when thou comest thither; whereby it appears (as Mr. Gataker well observed) that God's messages were frequently not revealed to the prophets before the very instant of time wherein they were to deliver them.