Helaman 5:45) The Lord does not delight in a blood sacrifice; He has no pleasure in burnt offerings; if so, we would offer them. The sacrifices of the Lord are a broken heart and a contrite spirit. Them, He will not despise.
"Create in me a clean heart, O God, and renew a steadfast spirit within me. Cast me not away from Thy presence; and take not Thy holy Spirit from me. Restore unto me the joy of Thy Salvation, and let a willing spirit uphold me." (Jewish Union Prayer Book)