Made clear from Jesus' message ("Repay to Cesar what belongs to Cesar and to God what belongs to God") is that every Christian holds a dual citizenship, and both citizenships have their own benefits and duties. Our birth made us citizens of an earthly nation while our baptism made us citizens of a heavenly kingdom. Sometimes those citizenships overlap, but in the end, our earthly citizenship will finish, while our heavenly one will last for eternity. It is obvious which one is more important!