I will be unto them as a lion - שחל shachal is supposed to mean here the black lion, frequent in Ethiopia.
As a leopard - נמר namar, so termed from its spotted skin, for to be spotted is the signification of the root.
Will I observe them - The leopard, tiger, and panther will hide themselves in thick bushwood, near where they expect any prey to pass; and as soon as it comes near, spring suddenly upon it. To this is the allusion in the text: "By the way will I observe them;" watch for them as the leopard does. They shall be greatly harassed even on their way to Assyria, when going into captivity.
I will be unto them as a lion - They had waxen fat, were full; yet it was, to become themselves a prey. Their wealth which they were proud of, which they abused, allured their enemies. To cut off all hopes of God‘s mercy, He says that he will be to them, as those creatures of His, which never spare. The fierceness of the lion, and the swiftness of the leopard, together portray a speedy inexorable chastisement. But what a contrast I He who bare Israel in the wilderness like a Father, who bare them on eagle‘s wings, who drew them with the cords of a man, with bands of love, He, the God of mercy and of love, their Father, Protector, Defender, Avenger, He it is who will be their destroyer.