Jeremiah 33:3 Call unto me, and I will answer thee, and shew thee great and mighty things, which thou knowest not.
This promise was to God’s people Israel. They would see God do things that they had never dreamed possible and He is going to do just that. He challenged His people to call on Him. He promised to answer. He promised to show them things that they had never seen.
This type promise is given to us also and to all people. God hears and answers prayer. He wants us to call on Him. He is a great God. There is none other like Him. Why do we not ask more when we know that we have such great promises?