Sacrifice in the Old Testament

Even in the Old Testament, offerings were not seen as be-all and end-all. Primary aim should be giving heed to the commandments like thou shall not kill.

Isaiah 1:11, "To what purpose is the multitude of your sacrifices unto me? saith the Lord: I am full of the burnt offerings of rams, and the fat of fed beasts; and I delight not in the blood of bullocks, or of lambs, or of he goats."

1 Samuel 15:22, "And Samuel said, Hath the LORD as great delight in burnt offerings and sacrifices, as in obeying the voice of the LORD? Behold, to obey is better than sacrifice, and to hearken than the fat of rams."

Ecclesiasticus 35:1, "He that keepeth the law bringeth offerings enough: he that taketh heed to the commandment offereth a peace offering."

Micah 6:6-8, "Wherewith shall I come before the Lord, and bow myself before the high God? shall I come before him with burnt offerings, with calves of a year old? Will the Lord be pleased with thousands of rams, or with ten thousands of rivers of oil? shall I give my firstborn for my transgression, the fruit of my body for the sin of my soul? He hath shewed thee, O man, what is good; and what doth the Lord require of thee, but to do justly, and to love mercy, and to walk humbly with thy God?"

King David also requested God to accept his lifting of his hands as a sacrifice, Psalm 141:2, "Let my prayer be set forth before thee as incense; and the lifting up of my hands as the evening sacrifice."

Hebrews 10:6 (New Testament), "In burnt offerings and sacrifices for sin thou hast had no pleasure."