In all perfection, I have seen the end. [1] The prophet again, using other words, commends the same truth which he had taught in the first verse of this part -- that the word of God is not subject to change, because it is elevated far above the perishable elements of this world. He here asserts, that there is nothing under heaven so perfect and stable, or so complete, in all respects, as not to have an end; and that the Divine word alone possesses such amplitude as to surpass all bounds and limits. Since the verb klh kalah, signifies to consume and finish, as well as to make perfect, some take the noun tklh tichelah, for measure or end But it is necessary to translate it perfection, that the comparison may be the more apparent, and the better to amplify the faithfulness of the Divine word; the idea which the prophet intended to convey being, that, after he had considered all things, especially those which are distinguished by the greatest perfection, he found that they were nothing when compared with God's word, inasmuch as all other things will soon come to an end, whereas the word of God stands ever firm in its own eternity. [2] Whence it follows, that we have no ground for apprehending that it will forsake us in the midst of our course.. It is termed broad, to denote that, though a man may mount above the heavens, or descend into the lowest depths, or traverse the whole space from the right to the left hand, yet he will not reach farther than the truth of God conducts us. It remains that our minds should embrace this vast extent; and such will be the case when they shall have ceased to enclose and shut themselves up within the narrow limits of this world.

Footnotes

1 - "The literal translation is, to the whole of perfection I perceive a limit. The Hebrew word, however, which is rendered by perfection, occurs only in this place. It seems clearly to have for its root a verb signifying to complete, to finish: the meaning is, to every created thing, however perfect, I see a boundary;' that is, it is limited as to its capability, as well as to its duration." -- Cresswell.

2 - "All human things, however full, perfect, and admirable, are necessarily deficient and mutable; but the law of God, like the nature of him from whom it proceeds, endureth for ever, and is in all respects complete and unalterable. We are to understand by the law here, the whole revealed will of God, comprehensive of promise as well as precept." -- Walford.

I have seen an end of all perfection - The word which is here rendered "perfection" - תכלה tiklâh - occurs only in this place; but a similar word from the same root - תכלית taklı̂yth - occurs in the following places: in Nehemiah 3:21, and Job 26:10, rendered "end;" in Job 11:7; Job 28:3, rendered "perfection;" and in Psalm 139:22, rendered "perfect." It means properly "completion, perfection;" or, as others suppose, "hope, confidence." It is rendered, in the Septuagint and Latin Vulgate, "consummation." Luther renders it, "of all things." It is proper here to apply it to character; to perfect virtue, or to claims to perfect virtue - either in one's-self or in others. The word rendered "end" here refers not to the fact of its existence, or to its duration, but to a limit or boundary as to its extent. To all claims to perfection made by man, he had seen an end or limit. He had examined all which claimed to be perfect; he had found it defective; he had so surveyed and examined the matter, as to be able to say that there could be no claim to perfection which would prove good. All claim to perfection on the part of man must be abandoned forever.
But thy commandment is exceeding broad - The word but is not in the original, and enfeebles the sense. The idea is, that the law of God, as he now saw it, was of such a nature - was so "broad" - as to demonstrate that there could be no just claim to perfection among people. All claims to perfection had arisen from the fact that the law was not properly understood, that its true nature was not seen. People thought that they were perfect, but it was because they had no just view of the extent and the spirituality of the law of God. They set up an imperfect standard; and when they became conformed to that standard, as they might do, they imagined themselves to be perfect; but when their conduct was compared with a higher and more just standard - the law of God - it could not but be seen that they were imperfect people. That law had claims which they had not met, and never would meet, in this life. It is very easy to flatter ourselves that we are perfect, if we make our own standard of character; it is not possible for man to set up a claim to perfection, if he measures himself by the standard of God's word; and all the claims of people to perfection are made simply because they do not properly understand what the law of God requires. Compare the notes at Job 9:20.

I have seen an end of all perfection - Literally, "Of all consummations I have seen the end:" as if one should say, Every thing of human origin has its limits and end, howsoever extensive, noble, and excellent. All arts and sciences, languages, inventions, have their respective principles, have their limits and ends; as they came from man and relate to man, they shall end with man: but thy law, thy revelation, which is a picture of thy own mind, an external manifestation of thy own perfections, conceived in thy infinite ideas, in reference to eternal objects, is exceeding broad; transcends the limits of creation; and extends illimitably into eternity! This has been explained as if it meant: All the real or pretended perfection that men can arrive at in this life is nothing when compared with what the law of God requires. This saying is false in itself, and is no meaning of the text. Whatever God requires of man he can, by his grace, work in man.

I (d) have seen an end of all perfection: [but] thy commandment [is] exceeding broad.
(d) There is nothing so perfect in earth, but it has an end, only God's word lasts forever.

I have seen an end of all perfection,.... An end, limit, or border, to every country, as the Syriac version; as there is to every kingdom and state, and to the whole world; but none to the commandment of God: or an end of all created beings, the finished works of God, the most perfect in their kind. Manythings had already fallen under the observation of the psalmist: he had seen men of the greatest strength, and of the most consummate wisdom, and that had attained to the highest degree of power and authority, of wealth and riches, and yet were all come to nothing; he had seen some of the most flourishing states and kingdoms brought to desolation; he had seen an entire end of them: he saw by the Spirit of God, and by the word of God, and faith in it, that all things would have an end, the heavens and earth, and all that is therein; for so it may be rendered, "I see an end of all perfection" (b); or that the most perfect things will have an end, and that the end of them is at hand; see 1-Peter 4:7. Moreover, he had looked over the wisdom of this world, and the princes of it, which comes to nought; he had considered the several political schemes of government, the wisest digest and system of laws, made by the wisest lawgivers among men, and found them all to be limited, short and shallow, in comparison of the word of God, as follows: the Targum is,
"I have seen an end of all that I have studied in and looked into.''
but thy commandment is exceeding broad; the word of God is a large field to walk and meditate in; it is sufficient to instruct all men in all ages, both with respect to doctrine and duty, and to make every man of God perfect; it has such a height and depth of doctrine and mysteries in it as can never be fully reached and fathomed, and such a breadth as is not to be measured: the fulness of the Scripture can never be exhausted; the promises of it reach to this life, and that which is to come; and the precepts of it are so large, that no works of righteousness done by men are adequate and proportionate to them; no righteousness, but the righteousness of Christ, is as large and as broad as those commandments; wherefore no perfection of righteousness is to be found in men, only in Christ; who is the perfect fulfilling end of the law for righteousness to everyone that believes, Romans 10:4.
(b) Tigurine version, Junius & Tremellius.

Perfection - Of the greatest and most perfect enjoyments in this world. Commandment - Thy word; one part of it being put for the whole. Broad - Or, large, both for extent, and for continuance: it is useful to all persons: it is of everlasting truth and efficacy; it will never deceive those who trust to it, as all worldly things will, but will make men happy both here and for ever.