ISB ~ 2 Corinthians 12 v14

the third time:An announcement of Paul’s forthcoming visit (13:1, 10). His first trip to Corinth lasted over 18 months (Acts 18:1-18), while his second proved to be a short and distressing visit (2 Cor 2:1). As before, Paul does not plan to burden the congregation by accepting payment for his apostolic work. See note on 2 Cor 11:7-11.

parents for their children:Paul is the spiritual father of the Corinthians (6:13). Because he is responsible for their Christian formation, he hopes he will not be humiliated or disappointed by misbehaving children when he comes (12:21). See note on 1 Cor 4:15.