by preaching the truth; through the power of God [i.e., possibly including miracles]; and by [using] weapons of righteousness in [our] right and left hands. [Note: This could allude to offensive and defensive weapons and means that Paul was fully equipped to do whatever was right].

[Note: The following section seems to pick up where 6:13 left off]. Make room for us in your hearts. We have not wronged or injured anyone, nor have we taken advantage of anyone.

as it is written [Ex. 16:18], "The person who gathered much [i.e., manna] did not have any left over, and the one who gathered [only] a little [still] had plenty."