Moreover, the Lord thy God will send the hornet among them,.... Not a single one, but several of them, and which may be understood of creatures so called, which resemble wasps, only twice as large, an insect very bold and venomous; see Exodus 23:28. Aben Ezra interprets it of the leprosy:

until they that are left, and hide themselves from thee, be destroyed; such of the Canaanites who escaped the sword of the Israelites, and hid themselves in holes and caverns of the earth; these the hornets would find out and sting them to death, until they were all destroyed. Thus God can make use of small creatures, even insects, to destroy nations the most populous and mighty.

He would also send hornets against them, as He had already promised in Exodus 23:28 (see the passage), until all that were left and had hidden themselves should have utterly perished.

Moreover the LORD thy God will send the {h} hornet among them, until they that are left, and hide themselves from thee, be destroyed.

(h) There is not a creature so small, that I will not arm it to fight on your side against them.

20. Moreover the Lord thy God will send the hornet among them-(See on [118]Jos 24:12 [and [119]Ex 23:28]).

7:12-26 We are in danger of having fellowship with the works of darkness if we take pleasure in fellowship with those who do such works. Whatever brings us into a snare, brings us under a curse. Let us be constant to our duty, and we cannot question the constancy of God's mercy. Diseases are God's servants; they go where he sends them, and do what he bids them. It is therefore good for the health of our bodies, thoroughly to mortify the sin of our souls; which is our rule of duty. Yet sin is never totally destroyed in this world; and it actually prevails in us much more than it would do, if we were watchful and diligent. In all this the Lord acts according to the counsel of his own will; but that counsel being hid from us, forms no excuse for our sloth and negligence, of which it is in no degree the cause. We must not think, that because the deliverance of the church, and the destruction of the enemies of the soul, are not done immediately, therefore they will never be done. God will do his own work in his own method and time; and we may be sure that they are always the best. Thus corruption is driven out of the hearts of believers by little and little. The work of sanctification is carried on gradually; but at length there will be a complete victory. Pride, security, and other sins that are common effects of prosperity, are enemies more dangerous than beasts of the field, and more apt to increase upon us.