John Gill

And as soon as we had heard these things, our hearts did melt,.... Particularly what were done to the two kings of the Amorites, who, and their people, were utterly destroyed, their goods made a prey of, and their countries seized upon and possessed: neither did there remain any more courage in any man, because of you; they looked dejected in their countenances, had no heart to go about any business, trembled at the shaking of a leaf, or at the least rumour and report made that the Israelites were coming on and were at hand; they had no spirit to prepare to go out and meet them, or to defend themselves: for the Lord your God, he is God in heaven above, and in earth beneath; the Maker and Possessor of both; is the Governor of the whole universe, and does what he pleases in it; and disposes of all countries, persons, and things, as he thinks fit: this is a proof of her knowledge of the true God, and faith in him, and shows her to be a believer, and hence she is reckoned in the catalogue of believers, Heb 11:31; and her faith is proved to be of the right kind by the works she did, Jam 2:25.