There are so many reasons to be happy that we are under the New Covenant. Here are three. From no animal sacrifice to brotherhood with Christ, the New Covenant should bring us happiness. The First Day of Unleavened Bread is a time to reflect on the New Covenant that Christ signed with his death on the cross and the pouring out of his blood for all mankind. We should celebrate the anniversary of our Savior's death and the start of the New Covenant.