'Draining' in the Bible

So they put the oxen to death and their blood was given to the priests to be drained out against the altar; then they put the male sheep to death, draining out their blood against the altar, and they put the lambs to death, draining out their blood against the altar.

And they took their places in their right order, as it was ordered in the law of Moses, the man of God: the priests draining out on the altar the blood given them by the Levites.