Isaiah 13:7

“Therefore shall all hands be faint, &c.] Or hang down; that is, the hands of all the Babylonians, the city being taken suddenly and at once, so that they should not be able to lift them up to lay hold on a weapon, and defend themselves: and every man’s heart shall melt; like wax before the fire; be dispirited, and lose all their valour and courage, have neither power nor heart to resist their enemies, and attempt to save themselves.”

“faint . . . melt--So Jer 50:43; compare Jos 7:5. Babylon was taken by surprise on the night of Belshazzar's impious feast (Dan 5:30). Hence the sudden fainting and melting of hearts.”

“Therefore shall all hands be faint - This is designed to denote the consternation and alarm of the people. They would be so terrified and alarmed that they would have no courage, no hope, and no power to make resistance. They would abandon their plans of defense, and give themselves up to despair (compare Jeremiah 50:43 : ‘The king of Babylon hath heard the report of them, and his hands waxed feeble; anguish took hold of him, and pangs as of a Women in travail;’ Ezekiel 7:17; Zephaniah 3:16). And every man’s heart shall melt - Or, shall faint, so that he shall have no courage or strength (compare Deuteronomy 20:8). The fact was, that the destruction of Babylon took place in the night. It…”

“Amazed - To see so impregnable a city as Babylon, so easily and unexpectedly taken. Flames - Heb. faces of flame, inflamed with rage and torment. Isaiah 13:9”

“shall all: Isa 10:3, Isa 10:4, Isa 37:27, Isa 51:20; Jer 50:43; Eze 7:17, Eze 21:7; Nah 1:6 be faint: or, fall down every: Isa 19:1; Exo 15:15; Nah 2:10 Isaiah 13:8”