John Calvin Commentary Joshua 2:24

"And they said unto Joshua, Truly Jehovah hath delivered into our hands all the land; and moreover all the inhabitants of the land do melt away before us." — Joshua 2:24 (ASV)

And they said unto Joshua, etc. This passage shows that Joshua was not mistaken in selecting his spies, for their language proves them to have been right-hearted men possessed of rare integrity. Others, perhaps not recovered from the terror into which they had once been thrown, would have disturbed the whole camp; but these men, while they reflect on the wonderful kindness of God displayed in their escape from danger and the successful outcome of their expedition, exhort Joshua and the people to go boldly forward.

And although the mere promise of possessing the land ought to have been sufficient, yet the Lord is so very indulgent to their weakness that, to remove all doubt, He confirms what He had promised by experience. That the Lord had not spoken in vain was proven by the consternation of the nations, as it already began to put them to flight and drive them out, as if hornets had been sent in upon them. For they argue in the same way as Rahab had done, that the land was given to them, as the inhabitants had almost fainted from fear.

I have therefore used the illative particle for, though its literal meaning is and also. But it is sufficiently plain that in this illative sense, it confirms what they had said. And indeed, the courage of all melted away, as if they felt themselves routed by the hand of God.