“Water” Baptism saves us because “water” Baptism IS “spirit” Baptism. Or, you know, just Baptism. Since baptizo already implies the use of water.
Scripture tells us that Baptism accomplishes the following:
Cleans you from iniquity, gives you a heart of flesh rather that of stone. Ezekiel 36:25-33
Makes you a disciple of Jesus. Matthew 28:19 (with teaching)
Forgives your sins. Acts 2:38 (With repentance)
Gives you the Holy Spirit. John 3:5, Acts 2:38.
Joins you with the death and resurrection of Jesus. Romans 6:2-5, Colossians 2:12.
Clothes you in Christ. Galatians 3:27.
Regenerates you. Titus 3:5.
Saves you. 1 Peter 3:21.
Doesn’t mean that baptism is absolutely necessary for salvation, for indeed all who call on the name of the Lord will be saved (Romans 10:13), but that verse doesn’t mean you get to take the eraser to what the Bible says Baptism is and does.
**Since baptizo already implies the use of water.**
Not necessarily. Jesus had already been baptized in water when he said this.
Matthew 20:22
But Jesus answered and said, Ye know not what ye ask. Are ye able to drink of the cup that I shall drink of, and to be baptized with the baptism that I am baptized with? They say unto him, We are able.
And this.
Luke 12:50
But I have a baptism to be baptized with; and how am I straitened till it be accomplished!
These are obviously NOT water baptism.