Now if you are a professing Christian there should be no argument about the fact that you belong to God. He not only created you but he bought you back from the slave-market of sin.
Romans 12:1-2 Therefore, I urge you, brothers and sisters, in view of God’s mercy, to offer your bodies as a living sacrifice, holy and pleasing to God—this is your true and proper worship. Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will.