While the modern phrase "baptism by fire" means a difficult ordeal, that is not the meaning here, because it is Jesus, not persecutors doing the baptizing, and it is with fire, not by fire.
Ingawa msemo wa kisasa wa "ubatizo wa moto" unamaanisha kitu kingine tofauti kabisa, hii siyo maana yake hapa, kwani ni Yesu, si watesi wanaobatiza, na wanafanya hivyo kwa moto.