The term comfort zone is not used in the Bible, but the idea of pushing into uncharted territory is certainly a Biblical idea. When I think of someone getting out of their comfort zone, I am always drawn to Abraham’s story in Genesis 12.
Now the Lord had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father’s house, unto a land that I will shew thee. (Genesis 12:1)
Talk about moving out into the unknown! To truly understand the magnitude of what God told Abraham to do, you should realize that during this time in history, and in this part of the world, families did not split up. Kids did not move away from home. Families were clans and tribes of multiple families all living and working together. A city or a village was simply a few interconnected families that stuck together. Why? Because it was literally the only way to survive at the time. So, when God told Abraham to get out of his country, and leave his family it was no small matter.