A Very Effective Charm (Spell)

From Romanus-Büchlein, Joseph H. Peterson edition:

Another One Like It

I conjure thee, sword, sabre, or knife, that mightest injure or harm me, by the priest of all prayers, who had gone into the temple at Jerusalem, and said; an edged sword shall pierce your soul that you may not injure me, who am a child of God.

From The Long Lost Friend:

A VERY EFFECTIVE CHARM.

I (name) conjure thee, sword or knife, as well as all other weapons, by that spear which pierced Jesus' side, and opened it to the gushing out of blood and water, that he keep me from injury as one of the servants of God. + + + Amen.

The grimoires Romanus-Büchlein The Long Lost Friend lists this spell.

Timeline of related events

1800