He keepeth all his bones - That is, he preserves or guards the righteous.
Not one of them is broken - Perhaps there is a direct and immediate allusion here to what the psalmist had himself experienced. In His dangers God had preserved him, so that he had escaped without a broken bone. But the statement is more general, and is designed to convey a truth in respect to the usual and proper effect of religion, or to denote the advantage, in reference to personal safety in the dangers of this life, derived from religion. The language is of a general character, such as often occurs in the Scriptures, and it should, in all fairness, be so construed. It cannot mean that the bones of a righteous man are never broken, or that the fact that a man has a broken bone proves that he is not righteous; but it means that, as a general principle, religion conduces to safety, or that the righteous are under the protection of God. Compare Matthew 10:30-31. Nothing more can be demanded in the fair interpretation of the language than this.

He keepeth all his bones - He takes care of his life; and if he have scars, they are honorable ones.

(m) He keepeth all his bones: not one of them is broken.
(m) And as Christ says, all the hairs of his head.

He keepeth all his bones; not one of them is broken. This is literally true of Christ, in whom the type of the passover lamb had its accomplishment, and this passage also; see Exodus 12:46; and seems better to agree with him than with any of his members, since the bones of many of them have been broken by one accident or another; and especially many of the martyrs of Jesus have had all their bones broken upon the rack or wheel; wherefore, to understand these words of them might tend to create uneasiness and despondency in the minds of such who by any means have their bones broken; as if they were not righteous persons, this promise not being fulfilled in them: and to interpret this of the Lord's keeping the bones of his people in the grave, and in the resurrection putting them together again; this is no other than what will be done to the wicked; it seems therefore best to understand the whole of Christ; and it looks as if this passage was had in view as fulfilled in John 19:36; since a Scripture is referred to; but if it is interpreted of the righteous in general, it must be with a limitation; as that their bones are all kept by the Lord, and not one is broken without his knowledge and will; and that they are not broken finally, but restored again perfect and whole in the resurrection, and so will continue to all eternity: the phrase, without entering into particulars, may in general design the care of Providence over the righteous; with this compare Matthew 10:29.

bones--framework of the body.

Bones - All the parts and members of their bodies.