Repentance is not so much an ultimatum as it is a promise. God doesn't need you to be good or godly in this world. He could raise up stones to do his bidding, if he really wanted. But he wants you. God wants you. That's why he sent his Son for you and why that Son is coming again. So, prepare the way for him. Change your heart and your life, in eager expectation of the return of your Savior.