Psalms 51:19

Then shalt thou be pleased with the sacrifices of righteousness - "Then," that is, when God should have thus showed favor to Zion; when he should have poured out his blessing on Jerusalem; when religion should prosper and prevail; when there should be an increase of the pure worship of God. In such offerings as would "then" be made - in sacrifices presented not in mere form, but with sincerity, humility, and penitence - in the outward offering of blood presented with a corresponding sincerity of feeling, and with true contrition, and a proper acknowledgment of the guilt designed to be represented by the shedding of blood in sacrifice - God would be pleased, and would approve the worship thus rendered to him. Sacrifice would then be acceptable, for it would not be presented as a mere form, but would be so offered, that it might be called a "sacrifice of righteousness" - a sacrifice offered with a right spirit; in a manner which God would deem right.

With burnt-offering - See the notes at Isaiah 1:11.

And whole burnt-offering - The word here means that which is wholly consumed, no part of which was reserved to be eaten by the priests, as was the case in many of the sacrifices. See Deuteronomy 33:10. Compare Leviticus 6:9; Leviticus 1:3-17.

Then shall they offer bullocks upon thine altar - That is, then shall bullocks be offered. The meaning is, that all the offerings prescribed in the law would then be brought, and that those sacrifices would be made with a right spirit - a spirit of true devotion - the offering of the heart accompanying the outward form. In other words, there would be manifested the spirit of humble worship; of pure religion.