Then the two men returned. They came down from the hills and passed over and came to Joshua the son of Nun, and they told him all that had happened to them.
We have here the safe return of the spies Joshua had sent, and the great encouragement they brought with them to Israel to proceed in their descent upon Canaan. Had they been disposed to discourage the people, as the evil spies did that Moses sent, they might have told them what they had observed of the height and strength of the walls of Jericho, and...
Commenting on Joshua 2:22-24
So the two men returned, and descended from the mountain,.... Or came down from it again, by which, it seems, they went to the top of it, and hid themselves in some cave there: this descent, Kimchi says, was,"on the third day of their being sent, which was the second day of the three days Joshua made mention of when he said, "within three days";''See...
So the two men returned - Having concealed themselves in the mountains that night, all the next day, and the night ensuing, on the third day they returned to Joshua.