Have we ever questioned our own personal strength? We want to know our personal limits, what we are capable of, where we can go without anyone else helping us. God is reminding us in this scripture that there is not a time during the day or the night where he is not on watch for us, guarding and protecting us. He is also reminding us of his capacity and strength saying that our strength is not from the mountains our strength is from God who MADE the mountains.