Biblical citations in the hymnal:
Philippians 1:9-11,
Ephesians 4:32-5:2,
Romans 2:4,
Galatians 6:9-10
Philippians 1:9-11: "9 And it is my prayer that your love may abound more and more, with knowledge and all discernment, 10 so that you may approve what is excellent, and so be pure and blameless for the day of Christ, 11 filled with the fruit of righteousness that comes through Jesus Christ, to the glory and praise of God."
Ephesians 4:32-5:2: "32 Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you. 5:1 Therefore be imitators of God, as beloved children. 2 And walk in love, as Christ loved us and gave himself up for us, a fragrant offering and sacrifice to God."
Romans 2:4: "Or do you presume on the riches of his kindness and forbearance and patience, not knowing that God's kindness is meant to lead you to repentance?"
Galatians 6:9-10: "9 And let us not grow weary of doing good, for in due season we will reap, if we do not give up. 10 So then, as we have opportunity, let us do good to everyone, and especially to those who are of the household of faith."
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Philippians 1:9-11, specifically the "knowledge and all discernment," seems to appear in the lines "Open our eyes to see Your love's intent, / To know with minds and hearts its depth and height" in the sixth verse. These lines also draw from Ephesians 3:17-19: "17 so that Christ may dwell in your hearts through faith - that you, being rooted and grounded in love, 18 may have strength to comprehend with all the saints what is the breadth and length and height and depth, 19 and to know the love of Christ that surpasses knowledge, that you may be filled with all the fullness of God."
Being "imitators of God" from Ephesians 5:1 may appear in the lines "Teach us, O Lord, true thankfulness divine, / That gives as Christ gave, never counting cost" in the fourth verse.
Romans 2:4 informs the hymn generally and appears throughout in the various instances of "Forgive us, Lord, for...."
"Do[ing] good" in the passage from Galatians 6 seems to appear in the line "May thankfulness be days in service spent" in the sixth verse.