en_tn_lite_do_not_use/2co/07/10.md

without regret

Possible meanings are 1) Paul has no regret that he caused them sorrow because that sorrow led to their repentance and salvation or 2) the Corinthians will not regret experiencing sorrow because it led to their repentance and salvation.

Worldly sorrow, however, brings about death

"Worldly sorrow, however, leads to spiritual death"