ISB ~ 2 Corinthians 10 v13

boast beyond limit:This probably has two, interrelated, meanings. (1) Paul and his companions do not invade mission fields for which others are responsible. That is, they stay within the territorial limits assigned to them without taking credit for labors done in “another’s field” (10:16; Rom 15:20). (2) Paul and company do not boast beyond the acceptable limits of humility but give the Lord full credit for their successful ministry (10:17). See note on 1 Cor 4:6.