The Sword of the Spirit
An offensive weapon worn at the side and used by hand either for thrusting or cutting.
It is an emblem of authority and power; an emblem of triumph and protection.
Sword of Laban
Word of God (spirit)
divine guidance; revelation; the spirit of truth.
The Lord's word is "quick and powerful, sharper than a two-edged sword, to the dividing asunder of both joints and marrow." (D&C 6:2)
"And take … the sword of my Spirit which I will pour out upon you, and my word which I will reveal unto you and be agreed as touching all things whatsoever ye ask me, and be fruitful 'til I come . . . that where I am ye shall be also". (D&C 27:18)
The sword then is bearing and living your testimony and preaching the word of God with the spirit.