Albert Barnes Commentary Joshua 2:22

"And they went, and came unto the mountain, and abode there three days, until the pursuers were returned: and the pursuers sought them throughout all the way, but found them not." — Joshua 2:22 (ASV)

To the mountain - Probably the mountains to the west and north of Jericho, called afterward, from the belief that the 40 days of our Lord’s temptation were passed among them, the Quarantania. The spies at first avoided the neighborhood of the Jordan, where their pursuers sought them; and amid the grottoes of the limestone rocks, which in later ages were the dwelling place of numerous hermits, they could readily shelter themselves for three days.