You are my son. Today I have become your Father (Psalm 2:7; NLT).
I will be your Father, and you will be my sons and daughters, says the Lord Almighty (2 Corinthians 6:18; NLT).
This is my dearly loved Son (Mark 9:7; NLT).
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Lord,
You are my Father,
And I am your much-loved child.