John Wesley on 2 Samuel 23:6

But - Having in the foregoing verses described the nature, and stability of that kingdom which God had by a sure covenant settled upon him and his seed; and especially, upon the Messiah, who was to be one of his posterity; he now describes the nature and miserable condition, of all the enemies of this holy and blessed kingdom. As thorns - Which men do not use to handle, but thrust them away. And so will God thrust away from himself, and from his people, and kingdom, all those who shall either secretly or openly set themselves against it.