Mark 12:17
What he is saying here is that since the money bears the image of the emperor, it belongs to him. But that is all he may lay claim to. Since human beings bear the image of God, we belong to him. So his ownership is greater. The physical government may expect a tax, but God may expect utter devotion in every regard. We may be debtors to government, but we are the possession of Almighty God. Thus, the paying taxes to the government is not incompatible with worshipping God. His worship is not destroyed by it since he may expect much much more.
Heavenly Father, you cannot be worshipped simply by monetary giving. We must be aware that our days belong to you too. All of our tomorrows are yours to hold. Thank you for giving us life and letting us be your servants. In the name of the Lord Jesus Christ I pray and praise you, Amen.