Once I was stoned. In Lystra on Paul’s first missionary journey (Acts 14:19), where the crowd thought they had killed Paul.
Three times I was shipwrecked. A shipwreck is found in Acts 27:39–44, but 2 Corinthians was written earlier, at the time described in Acts 20:2 (when Paul was in Macedonia). The three shipwrecks must have happened during his earlier missionary journeys.