John Gills Exposition of the Bible Commentary - Exodus 10:15
For they covered the face of the whole earth ,.... Of the whole land of Egypt; and this seems to be the instance in which these locusts differed from all others, that had been or would be, even in their numbers; for though there might have been before, and have been since, such vast numbers of them together as to darken the air and the sun, and by lighting first on one spot, and then on another, have destroyed whole countries; yet never was such an instance known as this, as that they should... read more
Matthew Henry's Complete Commentary - Exodus 10:12-20
Here is, I. The invasion of the land by the locusts?God's great army, Joel 2:11. God bids Moses stretch out his hand (Exod. 10:12), to beckon them, as it wee (for they came at a call), and he stretched forth his rod, Exod. 10:13. Compare Exod. 9:22, 23. Moses ascribes it to the stretching out, not of his own hand, but the rod of God, the instituted sign of God's presence with him. The locusts obey the summons, and fly upon the wings of the wind, the east wind, and caterpillars without number,... read more