'Memorial' in the Bible

then the man shall bring his wife to the priest, and he shall bring as an offering for her, a tenth of an ephah of barley meal; he shall not pour oil on it nor put frankincense on it [the symbols of favor and joy], because it is a grain offering of jealousy, a memorial grain offering, a reminder of [the consequences of] wickedness.

Then the priest shall take a handful of the grain offering as the memorial portion of it and offer it up in smoke on the altar, and afterward he shall make the woman drink the water.

as a reminder to the sons of Israel so that no layman—that is, one who is not of the descendants of Aaron should approach to offer incense before the Lord; so that he will not become like Korah and as his company—just as the Lord had said to him through Moses.

So Moses and Eleazar the priest received the gold from the commanders of thousands and of hundreds, and brought it into the Tent of Meeting (tabernacle) as a memorial for the sons of Israel before the Lord.