He has said, God is going to take the initiative in reconciliation. Now he says we should do this work. Our duty is to be drawn into this relationship. We need only to accept the offer of the new relationship with God. This indicates that we do have the power to reject God's offer.
Scripture teaches that humans play an active role in their conversion and repentance.
This clarifies our role as ambassadors. As ambassadors, God's servants are to communicate to people the message of reconciliation. The gospel is astounding. God went to radical lengths to save us. God did this for the sake of humankind.