Hebrews 7:27
Who hath no necessity daily, as the high priests, to offer up sacrifices, first for his own sins, and then for those of the people (for this He did once for all, when He offered up Himself);
Hebrews 9:26
else had it been needful for Him ofttimes to suffer since the founding of a world; but now, once for all, at the end of the ages, He hath been manifested for the putting away of sin through the sacrifice of Himself.
Hebrews 10:1-10
For the law, having a shadow of the good things to come, not the very likeness of the things, can never, with the same sacrifices, which they offer year by year continually, perfect those who come to them;