I have had Catholics tell me that the Mass IS a sacrifice, and then I’ve had Catholics tell me it’s NOT a sacrifice.
Romans 6:10 For the death that He died, He died to sin once for all; but the life that He lives, He lives to God.
Hebrews 7:27 who does not need daily, as those high priests, to offer up sacrifices, first for His own sins and then for the peoples, for this He did once for all when He offered up Himself.
Hebrews 9:12 Not with the blood of goats and calves, but with His own blood He entered the Most Holy Place once for all, having obtained eternal redemption.
Hebrews 10:10 By that will we have been sanctified through the offering of the body of Jesus Christ once for all.
So since you're so perfectly catechized (looking at your next post), you obviously know the correct answer, which is that the Mass is a sacrifice, but 150 Masses aren't 150 sacrifices but one, because the Mass is a true participation in only one sacrifice, that of Calvary.
So -- since you're perfectly catechized -- you must then know that White is gravely wrong. Yet you post his junk. Why?
Many deluded Catholics go for that daily sacrifice every day...