Mark 16:16: "'Whoever believes and is baptized will be saved, but whoever does not believe will be condemned.'"
Colossians 2:12-13: "12 having been buried with him in baptism, in which you were also raised with him through faith in the powerful working of God, who raised him from the dead. 13 And you, who were dead in your trespasses and the uncircumcision of your flesh, God made alive together with him, having forgiven us all our trespasses"
Acts 2:38: "And Peter said to them, 'Repent and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.'"
Revelation 7:13-15: "13 Then one of the elders addressed me, saying, 'Who are these, clothed in white robes, and from where have they come?' 14 I said to him, 'Sir, you know.' And he said to me, 'These are the ones coming out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb.
"15 'Therefore they are before the throne of God, and serve him day and night in his temple; and he who sits on the throne will shelter them with his presence."
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The text is public domain:
All who believe and are baptizedShall see the Lord's salvation;Baptized into the death of Christ,They are a new creation.Through Christ's redemption they shall standAmong the glorious, heav'nly bandOf ev'ry tribe and nation.
With one accord, O God, we pray:Grant us Your Holy Spirit.Help us in our infirmityThrough Jesus' blood and merit.Grant us to grow in grace each dayThat by this sacrament we mayEternal life inherit.
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Mark 16:16 appears in the first two lines.
Colossians 2:12-13 is cited apparently for the lines "Baptized into the death of Christ, / They are a new creation," although these lines bear a stronger resemblance to Romans 6:3-4: "3 Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death? 4 We were buried therefore with him by baptism into death, in order that, just as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life." and 2 Corinthians 5:17: "Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come."
The text from Revelation 7 appears at the end of the first verse, although the part about "the glorious, heav'nly band / Of ev'ry tribe and nation" comes a bit earlier than the cited text; it's in Revelation 7:9: "After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands." Revelation 7:14 also seems to be referred to in the lines "Help us in our infirmity / Through Jesus' blood and merit." in the second verse.
Acts 2:38 seems to appear at the beginning of the second verse: "With one accord, O God, we pray: / Grant us Your Holy Spirit."