Deuteronomy 21:5-9

Was not this washing over the head of the beast; in allusion to the same thing as the high priest on the day of atonement? And in the address to GOD, in which the distinguishing feature of character, as the Redeemer of his people, is expressly kept in view; was it not, as all the expressions of the law, intimating that without shedding of blood there was no remission? And if so, doth not the Reader behold in all this JESUS doing away all our murderous sins, by which we have destroyed ourselves, (though from our blindness like the one slain in the land, and it be not known by whom), we long remain unconscious of it. See Leviticus 16:29 and with the apostle's commentary upon it, Hebrews 9:7.