Rahab's Confession of God

While the Israelites found it difficult to believe that God could give them the land of Canaan, stack unbelievers, who had the testimonies of what the testimonies of what God had done, already knew that God would dispose them of the land and give it to the Jews. People in Jericho knew that God who dried the Red Sea and defeated two great Kings, would defeat the inhabitants of Canaan for the Israelites. In the same manner, while old Christian stuggle with unbelief, young Christians and sometime unbelievers are quick to appreciate God's power, and tap into it to recieve their miracles.
Point of Emphasis: The miracles, which God did in the past, should be enough reason to trust Him for promises yet unfulfilled.