Salvation through baptism
1 Peter 3:20-21
...In the days of Noah, during the building of the ark, ... a few ... were saved through water. Baptism, which corresponds to this, now saves you....

John 3:5
I tell you solemnly, unless a man is born through water and the Spirit, he cannot enter the kingdom of God.

Titus 3:5
It was for no reason except his own compassion that he saved us, by means of the cleansing water of rebirth and by renewing us with the Holy Spirit...

Mark 16:16
He who believes and is baptised will be saved.

Cleansed of sins through baptism
Acts 2:38
"You must repent," Peter answered, "and every one of you must be baptised in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit."

Acts 22:16
And now why do you wait? Rise and be baptized, and wash away your sins, calling on his name.

Ephesians 5:26
He made her clean by washing her in water with a form of words, so that when he took her to himself she would be glorious, with no speck or wrinkle or anything like that, but holy and faultless.

Titus 3:5
It was for no reason except his own compassion that he saved us, by means of the cleansing water of rebirth and by renewing us with the Holy Spirit...

1 Corinthians 6:11
You have been washed clean, and sanctified, and justified through the name of the Lord Jesus Christ and through the Spirit of our God.

Hebrews 10:22
Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.

Joined to the Resurrection through baptism
Colossians 2:12
You were buried with him in baptism, in which you were also raised with him through faith in the working of God, who raised him from the dead.

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.

Receiving the Holy Spirit through baptism
John 3:5
I tell you solemnly, unless a man is born through water and the Spirit, he cannot enter the kingdom of God.

Titus 3:5
It was for no reason except his own compassion that he saved us, by means of the cleansing water of rebirth and by renewing us with the Holy Spirit...

1 Corinthians 6:11
You have been washed clean, and sanctified, and justified through the name of the Lord Jesus Christ and through the Spirit of our God.

1 Corinthians 12:13
For by one Spirit we were all baptized into one body--Jews or Greeks, slaves or free--and all were made to drink of one Spirit.

Acts 2:38
"You must repent," Peter answered, "and every one of you must be baptised in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit."

We are joined together into the Mystical Body of Christ through baptism
1 Corinthians 12:13
For by one Spirit we were all baptized into one body--Jews or Greeks, slaves or free--and all were made to drink of one Spirit.