by water through the Word.
Do NOT limit Christ by saying one is saved by faith ALONE. He never said that. do listen to the words of Jesus who said it is faith+ repentance+baptism+the Eucharist+endurance, not any of these in isolation. Of course, these don't "save us" per se, since it is Christ's sacrifice on the Cross that grants us our salvation that we can accept or reject
The problem happens when one takes one section of the word in isolation.
Washing through the WORD, not water.