Leviticus 5:9

And he shall sprinkle of the blood of the sin offering upon the side of the altar; and the rest of the blood shall be wrung out at the bottom of the altar: it [is] a sin offering.

Ver. 9. Upon the side of the altar.] The north side, and not upon the east: (1.) that Israel might not symbolise with the heathens, who worshipped toward the east; (2.) To signify that they had no more under the law than dark "shadows of good things to come," Heb 10:1 "until the time of reformation." Heb 9:10