Did melt, i.e. were dissolved, lost all consistency and courage. This phrase is oft used, as Deuteronomy 1:28, Deuteronomy 20:8 Joshua 5:1, Joshua 7:5. He is God in heaven above, and in earth beneath; he can do whatsoever he pleaseth in heaven and earth; whereas our gods are enclosed in heaven, and can do nothing to us upon earth.
Related Commentaries of Joshua 2:11
Joshua 2:11
11 And as soon as we had heard these things, our hearts did melt, neither did there remain any more courage in any man, because of you: for the LORD your God, he is God in heaven above, and in earth beneath.