I was watching a debate on justifcation with a clavnist and he said titus 3:5 is not talking about baptism but faith, due to Ephesians 5:26 the only other time where “washing of water” is used
(so that He might sanctify her, having cleansed her by the washing of water with the word,)
Other time? Washing of water is not in Titus 3:5. It says, “washing of regeneration”.
Titus 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the
washing of regeneration, and renewing of the Holy Ghost;
If he admits that washing of regeneration means a washing of water, then he admits that this is about Baptism. Because there is no other washing mentioned in Scripture for the remission of sins:
Acts 22:16And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.
Nor for salvation:
Mark 16:16 King James Version (KJV)
16 He that believeth and is baptized shall be saved; but he that believeth not shall be damned.
He is making a “say so” statement. Protestants frequently do that. They say something and expect you to simply acquiesce.
But we can also make say so statements. Just say,
Well, I don’t believe you. I believe it is a reference to Baptism because “baptiso” means “washing”.
Baptizo - New Testament Greek Lexicon - New American Standard
https://www.biblestudytools.com › lexicons › greek › nas › baptizo
Learn about Baptizo original meaning using the New Testament Greek … by dipping or submerging, to wash, to make clean with water, to wash one’s self, bathe …
Baptizo: from a derivative of (911) Original Word: Word Origin
In addition, Baptism is the way in which Jesus Christ said we would be saved:
Mark 16:16 believe and are baptized will be saved.
Besides, Titus 3:5 is a thoroughly Catholic verse. When you read it, you think it says, “you don’t need to do any works to be saved.” But, that’s not what it says at all. It says, “not by the righteous works YOU HAVE DONE.” In other words, the prerequisite for being saved is doing righteous works. God only saves those who do righteous works and He does it in Baptism, the washing of regeneration by the Holy Spirit.
I hope that helps.