Trusting in God when depressed
Our bones are scattered at the grave’s mouth, as when one cutteth and cleaveth wood upon the earth. (Psalm 141:7 KJV)
If we take this Psalm as being written at the same time as Psalm 140 and 141 (see comment for Psalm 142), then David and his men are hiding in caves.
Maschil of David; A Prayer when he was in the cave. I cried unto the LORD with my voice; with my voice unto the LORD did I make my supplication. (Psalm 142:1 KJV)
The same word for “cave” in the heading to Psalm 142 is used of graves, since in Israel caves were used as burial sites. Presumably David was at this time quite depressed and visualizing the woodcuttings at the mouth of the cave he is hiding in, as if they were his bones and the bones of his men. His conclusion in verses 8-10 is an example to us all, in that he banishes such thoughts by trusting in God, the one who can deliver us from all our troubles.
But mine eyes are unto thee, O GOD the Lord: in thee is my trust; leave not my soul destitute. Keep me from the snares which they have laid for me, and the gins of the workers of iniquity. Let the wicked fall into their own nets, whilst that I withal escape. (Psalm 141:8-10 KJV)