“For for this cause pay ye tribute also: for they are God's ministers, attending continually upon this very thing.”
King James Version (KJV)
13:6 For this cause - Because they are the ministers (officers) of God for the public good. This very thing - The public good.
Ro 13:6 For this cause pay ye tribute also. Taxes. The taxes gathered from the Roman provinces were called tribute. As the rulers are God's ministers, his agents to attend to necessary duties, it is right that they should be supported.