William Burkitt on Revelation 13:2

St. John here proceeds in giving a farther description of this monstrous beast; it was in appearance like a leopard, spotted with divers kinds of idolatry, with variety of idol gods; with feet like a bear, denoting its strength and fierceness; its mouth like a lion, that is, cruel and ravenous.

Next an account is given from whom this beast receives its power and authority; the dragon, that is, the devil, by God's permission, gave unto this beast power and great authority, to deceive by strong delusions, and hurt the soul, as also to kill and destroy the body.

Note here, That when the dragon is said to give the beast his throne and power, his seat and great authority, we must not understand it as by right, for all power is from God, but as by usurpation, belonging to him. That authority, which is claimed to depose kings, to dispose of kingdoms, to dispense with the laws of God, all this is from the dragon, and in no wise from God. The dragon gave the beast his power, his seat, and great authority.