A memorial is always established when a blood covenant is made to keep the remembrance alive, to mark so as to be recognized, to record the ceremony. Memorials in the Old Covenant were reviewed (names, days, book, stones, sabbath, tithe), and we discovered that Israel's rescue out of Egypt even became a memorial. Then we looked at the memorials that were set up in the New Covenant (water baptism, sheep, trees, rocks, trophies, epistles)...and we are to be memorials that keep Jesus' Redemption alive. Then we studied in detail the most significant memorial of New Covenant--the Covenant Meal. Every other step of entering into a blood covenant is outward, but partaking of the Covenant Meal brings the covenant inward. It should be the only thing in our "medicine cabinet."