(3.) He must assure them that the present design of these high allies (so they thought themselves) against Jerusalem should certainly be defeated and come to nothing, v. 5-7. [1.] That very thing which Ahaz thought most formidable is made the ground of their defeat—and that was the depth of their designs and the height of their hopes: "Therefore they shall be baffled and sent back with shame, because they have taken evil counsel against thee, which is an offence to God. These firebrands are a smoke in his nose (ch. lxv. 5), and therefore must be extinguished." First, They are very spiteful and malicious, and, therefore they shall not prosper. Judah had done them no wrong; they had no pretence to quarrel with Ahaz; but, without any reason, they said, Let us go up against Judah, and vex it. Note, Those that are vexatious cannot expect to be prosperous, those that love to do mischief cannot expect to do well. Secondly, They are very secure, and confident of success. They will vex Judah by going up against it; yet that is not all: they do not doubt but to make a breach in the wall of Jerusalem wide enough for them to march their army in at; or they count upon dissecting or dividing the kingdom into two parts, one for the king of Israel, the other for the king of Syria, who had agreed in one viceroy—a king to be set in the midst of it, even the son of Tabeal, some obscure person, it is uncertain whether a Syrian or an Israelite. So sure were they of gaining their point that they divided the prey before they had caught it. Note, Those that are most scornful are commonly least successful, for surely God scorns the scorners. [2.] God himself gives them his word that the attempt should not take effect (v. 7): "Thus saith the Lord God, the sovereign Lord of all, who brings the counsel of the heathen to naught (Ps. xxxiii. 10), It shall not stand, neither shall it come to pass; their measures shall all be broken, and they shall not be able to bring to pass their enterprise." Note, Whatever stands against God, or thinks to stand without him, cannot stand long. Man purposes, but God disposes; and who is he that saith and it cometh to pass if the Lord commands it not or countermands it? Lam. iii. 37. See Prov. xix. 21.