What is Repentance? Episode Four

What is repentance?
How important is it to God?
How do you repent well?

Some of the first words Jesus spoke in His public ministry were, "Repent, for the Kingdom of God has come." What did He mean by calling people to repent who were already trying to be good, God-fearing Jews?

Jesus is calling His people today to repent to get ready for what he is about to do in America.