'Side' in the Bible

He shall slay it on the side of the altar northward before the Lord, and Aaron’s sons the priests shall sprinkle its blood around on the altar.

The priest shall bring it to the altar, and wring off its head and offer it up in smoke on the altar; and its blood is to be drained out on the side of the altar.

He shall also sprinkle some of the blood of the sin offering on the side of the altar, while the rest of the blood shall be drained out at the base of the altar: it is a sin offering.

Moreover, he shall take some of the blood of the bull and sprinkle it with his finger on the mercy seat on the east side; also in front of the mercy seat he shall sprinkle some of the blood with his finger seven times.