Ezekiel 45:19

So the priest shall take of the blood of the sin offering, and sprinkle it upon the posts of the house, and upon the four corners of the altar, with the door posts of the innermore court.

Ezekiel 43:20

and take the blood of him and sprinkle his four horns withal and the four corners of the altar covering, with the ledge that goeth round about: herewith shalt thou cleanse it, and reconcile it.

Leviticus 16:18-20

Then he shall go out unto the altar that standeth before the LORD, and reconcile it, and shall take of the blood of the ox and of the blood of the goat, and put it upon the horns of the altar round about,

Ezekiel 43:14

from the ground to the lower steps the length is two cubits, and the breadth one cubit; and from the lower steps to the higher are four cubits, and the breadth but one cubit.

Ezekiel 43:17

The covering of the altar was fourteen cubits long and broad upon the four corners, and the ledge that went round about, had half a cubit: and the bottom thereof round about one cubit: his steps stood toward the East.

Treasury of Scripture Knowledge

Summary

And the priest shall take of the blood of the sin offering, and put it upon the posts of the house, and upon the four corners of the settle of the altar, and upon the posts of the gate of the inner court.

And upon the four corners

Bible References

And upon the four corners

Ezekiel 43:14
from the ground to the lower steps the length is two cubits, and the breadth one cubit; and from the lower steps to the higher are four cubits, and the breadth but one cubit.
Leviticus 16:18
Then he shall go out unto the altar that standeth before the LORD, and reconcile it, and shall take of the blood of the ox and of the blood of the goat, and put it upon the horns of the altar round about,