God chose us and we have to live the best life we can for Him. We will never be able to do enough to repay Him for the price He paid to save us, and He knows that. But, he does expect us to act like His children should act. He didn't save us so that we could live as we please with no thought to how we act. God has certain standards of living and he expects us to do our best to live up to them.
We must love as He loved and show the same compassion to all we meet that He showed to us. He expects us to tell others how much He loves them and that there is a better way to live than they have been living. When we think of how wonderful it is to know Jesus, it is only right that we share with others how wonderful he is, so that they too can experience the privilege of accepting Him as their Lord and Saviour.