Leviticus 16:19
And he shall sprinkle some of the blood on it with his finger seven times, and cleanse it and consecrate it from the uncleannesses of the people of Israel.
Ezekiel 43:18-22
And he said to me, "Son of man, thus says the Lord GOD: These are the ordinances for the altar: On the day when it is erected for offering burnt offerings upon it and for throwing blood against it,
Zechariah 13:1
"On that day there shall be a fountain opened for the house of David and the inhabitants of Jerusalem, to cleanse them from sin and uncleanness.
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