Bow
A bow signifies falsity of doctrine destroying truth, and spear, the falsity of evil destroying good. (Jeremiah 6:23)
(References: Apocalypse Explained 357)
Blood of the Lamb
In Revelation 5:9, this signifies divine truth from the divine good of the Divine Love. (Apocalypse Revealed 379) This also signifies divine truth proceeding from the Lord and man's reception of it. (Apocalypse Explained 329)