Let them be confounded and put to shame that seek after my soul: let them be turned back and brought to confusion that devise my hurt. Let then be confounded - Let none of their projects or devices against me succeed. Blast all their designs.
The imprecations in these verses against enemies are all legitimate. They are not against the souls or eternal welfare of those sinners, but against their schemes and plans for destroying the life of an innocent man; and the holiest Christian may offer up such prayers against his adversaries. If a man aim a blow at another with a design to take away his life, and the blow would infallibly be mortal if it took place, and the person about to be slain see that by breaking the arm of his adversary he may prevent his own death, and thus save his enemy from actual murder; it is his duty to prevent this double evil by breaking the arm of the blood-thirsty man. It is on this principle that David prays against his adversaries in the first eight verses of this Psalm.