'Burnt offerings' in the Bible

To what purpose is the multitude of your sacrifices to 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.

Thou hast not brought me the small cattle of thy burnt-offerings; neither hast thou honored me with thy sacrifices. I have not caused thee to serve with an offering, nor wearied thee with incense.

Even them will I bring to my holy mountain, and make them joyful in my house of prayer: their burnt-offerings and their sacrifices shall be accepted upon my altar; for my house shall be called a house of prayer for all people.