For for this cause pay ye tribute also: for they are God's ministers, attending continually upon this very thing.
For, for this cause pay ye tribute also - or, 'ye pay.' Critics differ as to whether this is a counsel to pay, or a statement of the fact that they did pay: q.d, 'This is the reason why ye pay the contributions requisite for maintaining the civil government,'
For they are God's ministers, attending continually upon (or 'to') this very thing.
From magistrates the apostle now comes to other officials, and from them to men related to us by whatever tie.
Civil Duties in General (Romans 13:7)