(unlikely) A second baptism by the Holy Spirit: There is only one preposition, i.e. it says "by the Holy Spirit and fire" not "by the Holy Spirit and by fire. So this probably does not refer to a second event.
(Maana isiyo na uwezekano mkubwa) Ubatizo wa pili kwa Roho Mtakatifu: Kwenye lugha ya asili, kuna kihusishi kimoja tu hapa, yaani, "kwa Roho Mtakatifu na moto" si "kwa Roho Mtakatifu na kwa moto."