The keys are the gospel of Jesus Christ. With the gospel, Jesus gives His church the same power of heaven which can be released on earth to defeat the enemy. With this power and freedom, we can unlock many doors for ourselves as well as for others.
The keys to the kingdom are ours only if we accept Jesus into our hearts and faithfully live our lives for the Him. Follow Jesus and share the good news!
I will give you the keys of the kingdom of heaven; whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven. – Matthew 16:19