Hebrews 7:27-28

27who has not day by day need, as the high priests, first to offer up sacrifices for his own sins, then [for] those of the people; for this he did once for all [in] having offered up himself. 28For the law constitutes men high priests, having infirmity; but the word of the swearing of the oath which [is] after the law, a Son perfected for ever.