«أَرْعَى ... أَبْذُلُ ... أَحْتَمِلُ ... أُفَضِّلُ ... أَقْنَعُ»
I respect, give, endure, prefer, and remain content.
The reply repeatedly uses first-person imperfect verbs. The speaker assumes agency in every claim, while wa-law introduces an adverse circumstance which, he says, does not change his conduct.
«وَلَوْ جَارَ» — even if he acts unjustly.
«وَلَوْ أَبْدَى التَّخْلِيطَ» — even if he behaves chaotically.
«وَلَوْ لَدَغَنِي الْأَرْقَمُ» — even if the serpent bites me.
The grammatical recurrence holds the unusually long response together.