What bible verses speak of the number 40?

In The Bible, 40 is the number that usually signifies change, especially the change of the nature and characteristics of something or someone's life. For example, Noah's life was changed when he was inside the ark for 40 days. The Israelites changed their rebellious attitude toward God after being forced to wander through the desert for forty years. Jesus' ministry was started after he fasted in the desert for forty days and was tempted by the devil.