Holy Baptism is the first sacrament, making us members of Christ and His the Church. We are received into His Church via Holy Baptism.Holy Baptism does notrequired the use of Holy water and the Trinitarian formula, and this is in scripture.I fixed it for you.
“Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.” (Matthew 28:19) Douay-Rheims Bible
The use of Holy water:
“Jesus answered: Amen, amen I say to thee, unless a man be born again of water and the Holy Ghost, he cannot enter into the kingdom of God.” (John 3:5) Douay-Rheims Bible
Holy Baptism is necessary for salvation according to Vatican II. (Salvation outside the Church might be possible, if someone through no fault of their own fails to hear Jesus’ message, but that’s a whole other discussion).