Hebrews 9:11-14; Hebrews 9:28

11 But when the Messiah appeared as cohen gadol of the good things that are happening already, then, through the greater and more perfect Tent which is not man-made (that is, it is not of this created world), 12 he entered the Holiest Place once and for all. And he entered not by means of the blood of goats and calves, but by means of his own blood, thus setting people free forever. 13 For if sprinkling ceremonially unclean persons with the blood of goats and bulls and the ashes of a heifer restores their outward purity; 14 then how much more the blood of the Messiah, who, through the eternal Spirit, offered himself to God as a sacrifice without blemish, will purify our conscience from works that lead to death, so that we can serve the living God!
28 so also the Messiah, having been offered once to bear the sins of many, i will appear a second time, not to deal with sin, but to deliver those who are eagerly waiting for him.