Fear not the foe...
CW:Hymnal, the new WELS hymnal, skips from hymn 665 to 667. There is no hymn 666. Best construction: Cute. Worst construction: Superstitious. the LCMS rushes in where the WELS fears to tread.
Nothing has the nature of a sacrament apart from its intended use
In a time of confession, nothing is adiaphora