Neither do we observe the penitential season of Lent and celebrate the days of Holy Week, or any of the other holy days during the church year, (or even Sundays as the Lord’s Day) with all the associated colors and customs to make us pious, i.e., holy.
It’s not the days, or the colors, or the customs, or anything that we *do.* There is only one way to be made pious, i.e. holy and worthy to live in the presence of God now and forever. That is to be made one with Jesus, the Christ, the Son of the living God—the fulfillment of all Scripture, the Messiah of God, and "your king [who] is coming to you; righteous and having salvation."
To hear and/or read the entire sermon preached for Palmarum, "When Jesus Was Glorified," click on this link. http://lcmssermons.com/index.php?sn=3747