Matthew 3:16-17: "16 And when Jesus was baptized, immediately he went up from the water, and behold, the heavens were opened to him, and he saw the Spirit of God descending like a dove and coming to rest on him; 17 and behold, a voice from heaven said, 'This is my beloved Son, with whom I am well pleased.'"
Titus 3:3-7: "3 For we ourselves were once foolish, disobedient, led astray, slaved to various passions and pleasures, passing our days in malice and envy, hated by others and hating one another. 4 But when the goodness and loving kindness of God our Savior appeared, 5 he saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit, 6 whom he poured out on us richly through Jesus Christ our Savior, 7 so that being justified by his grace we might become heirs according to the hope of eternal life."
Ephesians 5:25b-26: "as Christ loved the church and gave himself up for her, 26 that he might sanctify her, having cleansed her by the washing of water with the word"
Mark 10:16: "And he took them in his arms and blessed them, laying his hands on them."
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The text from Matthew 3 seems to appear in the second verse, specifically in the line "And the Father beams, 'Beloved.'" The text from Mark 10 is at the end of the third verse: "God, into Your arms we place him/her/them, / With Your love and peace embrace him/her/them."
The text from Ephesians comes at the very end of the hymn, the last line of the fourth verse: "Born again by Word and water."
The text from Titus informs the hymn (especially the first two verses) more broadly, although the line "'Heir of gifts a king would covet!'" at the end of the hymn's second verse seems to refer to verse 7.
