The Devil is an invisible spirit person, which means that he does not have a physical appearance.—Ephesians 6:11, 12.
A popular depiction of the Devil is that of a goatlike creature with horns, a tail, and a pitchfork. Some have suggested that such depictions of the Devil were conceived by medieval artists who were likely influenced by folklore and ancient mythology.
The Bible uses a number of analogies regarding the Devil. These help us to understand, not his appearance, but his personality. Some of these analogies include:
An angel of light. He pretends to offer something good to try to get people to follow his teachings rather than those of God.—2 Corinthians 11:14.
A roaring lion. He fiercely attacks God’s worshippers.—1 Peter 5:8.
A great dragon. He is frightful, powerful, and destructive.—Revelation 12:9.