Shemot 30:16

16 And thou shalt take the kesef hakippurim of the Bnei Yisroel, and shalt appoint it for the Avodat Ohel Mo’ed (Work, Service of the Tent of Appointed Meeting); that it may be a zikaron unto the Bnei Yisroel before Hashem, to make kapporah for your nefashot [see Psalm 49; 1K 1:18-19 OJBC].