A Shiggaion of David, which he sang to the Lord concerning Cush, a Benjamite.
O Lord my God, in You I have taken refuge;
Save me from all those who pursue me, and deliver me,
2 Or he will tear my soul like a lion,
Dragging me away, while there is none to deliver.
While the titles we find in our Bibles are not part of the inspired text, they are sometimes helpful. In the Psalms, however, these inscriptions at the beginning are Scripture. It is no small detail, then, that David sang this solo, concerning a particular man—Cush who was of the tribe of Benjamin. That’s about all we know of this incident.
Who else in David’s life was of the tribe of Benjamin?
3 O Lord my God, if I have done this,
If there is injustice in my hands,
4 If I have rewarded evil to my friend,
Or have plundered him who without cause was my adversary,
5 Let the enemy pursue my soul and overtake it;
And let him trample my life down to the ground
And lay my glory in the dust. Selah.
It’s important to note that David is not proclaiming his own righteousness in every part of his life. David is singing/praying about this particular case with Cush, and perhaps other incidents related to the family of that other Benjaminite—have you guessed it?—King Saul.
Reading the life of David, you will see that David generally did right in God’s eyes concerning how he dealt with Saul’s family. In some cases, they made themselves bitter enemies of David (Shimei, son of Gera). In some cases, David pledged his mercy (Mephibosheth).
What we are to see here, is that David is dealing righteously with Cush, but Cush is pursuing him as the devil—like a lion, seeking David to devour (1 Peter 5:8).
So David is acting Christlike.
Cush is acting like the devil, an adversary and an accuser.