These come unto thee, after the manner of a great people: yea, my people sit down before thee, and hear thy words, but they do not thereafter: for in their mouths they show themselves, as though they were fervent, but their heart goeth after their own covetous lucre.

Woe be unto them, for they have followed the way of Cain, and are utterly given to the error of Balaam for lucre's sake, and are cast away in the treason of Korah.

Seven altars

An altar of earth thou shalt make unto me and thereon offer thy burnt offerings and thy peace offerings, and thy sheep and thine oxen. And in all places where I shall put the remembrance of my name, thither I will come unto thee and bless thee.

And thou shalt make an altar of sethim-wood: five cubits long and five cubits broad, that it be foursquare, and three cubits high.

Then said Samuel, "Hath the LORD as great pleasure in burnt sacrifices and offerings, as he hath that thou shouldest obey his voice? Behold, to obey is better than sacrifice, and to give heed is better than the fat of rams.

If ye say unto me, 'We trust in the LORD our God' - Is not that he whose hill altars and other altars too, Hezekiah hath put down, and hath said to Judah and Jerusalem, 'Bow yourselves before this altar here in Jerusalem'?

I reprove thee not because of thy sacrifice; thy burnt-offerings are always before me.

The LORD abhorreth the sacrifice of the ungodly; but the prayer of the righteous is acceptable to him.

Why offer ye so many sacrifices unto me, sayeth the LORD? I am full of the burnt offerings of weathers, and with the fatness of fed beasts. I have no pleasure in the blood of bullocks, lambs, and goats.

Woe be unto you, scribes and Pharisees, for ye devour widows' houses: and that, under a colour of praying long prayers, wherefore ye shall receive greater damnation.

Seven oxen

And the seventh day, seven bullocks, two rams and fourteen lambs that are yearlings and pure.

And when God had helped the Levites that bare the Ark of the Covenant of the LORD, they offered seven oxen and seven rams.

And there were brought seven oxen, seven rams, seven lambs and seven kids to be a sin offering for the kingdom, for the sanctuary and for Judah. And he commanded the priests the sons of Aaron to offer them on the altar of the LORD.

Therefore take seven oxen and seven rams, and go to my servant Job, offer up also for yourselves a burnt offering: and let my servant Job pray for you. Him will I accept, and not deal with you after your foolishness: in that ye have not spoken the thing which is right, like as my servant Job hath done."

And in the feast of the seven days he shall offer every day a bullock and a ram, that are without blemish, for a burnt offering unto the LORD: and a he goat daily for a sin offering.

General references

And Balaam said unto Balak, "Make me here seven altars, and prepare me here seven bullocks and seven rams."