Psalm 40:6-8

New Revised Standard Version Catholic Edition

⁶ Sacrifice and offering you do not desire,
    but you have given me an open ear.^[a]
Burnt offering and sin offering
    you have not required.
⁷ Then I said, “Here I am;
    in the scroll of the book it is written of me.^[b]
8 I delight to do your will, O my God;
    your law is within my heart.”