Verse 21. A nail of the tent - Wherewith they used to fasten the tent, which consequently was long and sharp. This might seem a very bold attempt, but it must be considered, that she was encouraged to it, by observing that the heavens and all the elements conspired against him, as one devoted to destruction. In the following son, Deborah doth not commend Jael's words, ver. 18. Turn in my Lord, fear not; but only her action: touching which, this one consideration may abundantly suffice to stop the mouths of objectors. It cannot be denied, that every discourse which is recorded in scripture, is not divinely inspired, because some of them were uttered by the devil, and others by holy men, but mistaken. This being so, the worst that any can infer from this place is, that this song, tho' indited by a good woman, was not divinely inspired, but only composed by a person transported with joy for the deliverance of God's people, but subject to mistake; who therefore, out of zeal to commend the instrument of so great a deliverance, might overlook the indirectness of the means, and commend that which should have been disliked, And if they farther object, that it was composed by a prophetess, and therefore must be divinely inspired; it may be replied, that every expression of a true prophet was not divinely inspired; as is evident from Samuel's mistake concerning Eliab, whom he thought to be the Lord's anointed, 1 Sam. xvi, 6. This is said upon supposition that Jael acted deceitfully in this affair; but if we suppose, which is much more likely, that Jael fully intended to afford Sisera the shelter and protection which he sought of her, but was afterwards by the immediate direction of heaven ordered to kill him, the whole difficulty vanishes, and the character both of Jael and of Deborah remains unimpeached.