It’s impossible to respond to this question from Psalm 116. There is nothing I can do; however, fortunately God gives us the ability to make some return. We can take up the cup of salvation. We can call upon the name of the Lord. We can vow our lives. We can be God’s servants. We can offer thanksgiving. We can do these things—and all things—because God takes the initiative. We love because God first loved us. We serve because Jesus came to serve and not be served. My return to the Lord is gratefully offering back to God all that God has done.