1 Kings 19

Hoyt W. Brewster Jr. wrote -

"The Lord has counseled to "clothe yourselves with the bond of charity, as with a mantle, which is the bond of perfectness and peace" (D&C 88:125). A mantle is a robe or a cloak and the term is often used symbolically to express a covering that characterizes a trait or the authority which an individual possesses." (Doctrine and Covenants Encyclopedia)

When Elijah the prophet heard the still small voice

"...he wrapped his face in his mantle, and went out, and stood in the entering in of the cave..." (Old Testament | 1 Kings 19:13)

...to hear the instructions of the Lord. In wrapping his face in his mantle, Elijah understood that he had been called of God. With this great mantle or burden upon him, you can sense his frustration as he wonders -

"...I have been very jealous for the LORD God of hosts: because the children of Israel have forsaken thy covenant, thrown down thine altars, and slain thy prophets with the sword; and I, even I only, am left; and they seek my life, to take it away." (Old Testament | 1 Kings 19:14)

It would be difficult to wear this mantle believing that there is no one that believes and will follow. The Lord knows the hearts of men and tells Elijah -

"...Elisha the son of Shaphat of Abel-meholah shalt thou anoint to be prophet in thy room." (Old Testament | 1 Kings 19:16)

Elijah then learned that Elisha would serve with him and eventually also became a great prophet as Elijah -

"...found Elisha the son of Shaphat, who was plowing with twelve yoke of oxen before him, and he with the twelfth: and Elijah passed by him, and cast his mantle upon him." (Old Testament | 1 Kings 19:19)

In the modern day Church, we too symbolic use the same analogy as leaders are called and released.