How is Baptism rightly administered?

Answer

Baptism is rightly administered by immersion, or dipping the whole body of the party in water, into the name of the Father, and of the Son, and of the Holy Spirit, according to Christ's institution, and the practice of the apostles (; ; ; ; ; ; ), and not by sprinkling or pouring of water, or dipping some part of the body, after the tradition of men.

Read the 7 proof texts (KJV)

Matthew 3:16: And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
John 3:23: And John also was baptizing in Aenon near to Salim, because there was much water there: and they came, and were baptized.
John 4:1-2: ¹When therefore the Lord knew how the Pharisees had heard that Jesus made and baptized more disciples than John, ²(Though Jesus himself baptized not, but his disciples,)
Matthew 28:19-20: ¹⁹Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: ²⁰Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, [even] unto the end of the world. Amen.
Acts 8:38: And he commanded the chariot to stand still: and they went down both into the water, both Philip and the eunuch; and he baptized him.
Romans 6:4: Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.
Colossians 2:12: Buried with him in baptism, wherein also ye are risen with [him] through the faith of the operation of God, who hath raised him from the dead.