Psalm 40:6-8

New Revised Standard Version, Anglicised 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.’