Helem.

Zechariah 6:10
"Take an offering from the exiles--from Heldai, Tobijah, and Jedaiah, who have arrived from Babylon--and go that same day to the house of Josiah son of Zephaniah.

a memorial.

Exodus 12:14
And this day will be a memorial for you, and you are to celebrate it as a feast to the LORD, as a lasting ordinance for the generations to come.

Exodus 28:12, 29
Fasten both stones onto the shoulder pieces of the ephod as memorial stones for the sons of Israel. Aaron is to bear their names on his two shoulders as a memorial before the LORD. . . .

Numbers 16:40
just as the LORD commanded him through Moses. This was to be a reminder for the Israelites that no outsider who is not a descendant of Aaron should approach to offer incense before the LORD, lest he become like Korah and his followers.

Numbers 31:54
And Moses and Eleazar the priest received the gold from the commanders of thousands and of hundreds and brought it into the Tent of Meeting as a memorial for the Israelites before the LORD.

Joshua 4:7
you are to tell them, 'The waters of the Jordan were cut off before the ark of the covenant of the LORD. When it crossed the Jordan, its waters were cut off.' Therefore these stones will be a memorial to the Israelites forever."

1 Samuel 2:30
Therefore, the LORD, the God of Israel, declares: 'I did indeed say that your house and the house of your father would walk before Me forever. But now the LORD declares: Far be it from Me! For I will honor those who honor Me, but those who despise Me will be disdained.

Matthew 26:13
Truly I tell you, wherever this gospel is preached in all the world, what she has done will also be told in memory of her."

Mark 14:9
And truly I tell you, wherever the gospel is preached in all the world, what she has done will also be told in memory of her."

Acts 10:4
Cornelius stared at him in fear and asked, "What is it, Lord?" The angel answered, "Your prayers and gifts to the poor have ascended as a memorial offering before God.

1 Corinthians 11:23-26
For I received from the Lord what I also passed on to you: that the Lord Jesus, on the night He was betrayed, took bread, . . .