Christian commentators generally understand the burning bush as a visible manifestation of God's presence. Fire frequently accompanies divine revelation in Scripture, suggesting holiness, power, and purity. Yet this fire behaved differently from ordinary flames. The bush remained unharmed because the event was supernatural.
Many Christian interpreters also see the bush as a picture of Israel. The Israelites were suffering under Egyptian oppression, yet God had preserved them. Like the bush surrounded by flames, they endured affliction without being destroyed.
Others emphasize that the fire illustrates the difference between God and His creation. Ordinary fire requires fuel and consumes what it touches. God, however, depends upon nothing outside Himself for His existence or power.
Some Christian traditions also recognize the appearance of the angel of the Lord in the flames as a possible manifestation of the eternal Son before His incarnation, although the passage does not explicitly identify the figure as Christ.