How blessed are those who observe His testimonies, Who seek Him with all their heart.
NASB95
Blessed are those who keep his testimonies, who seek him with their whole heart,
ESV
Blessed are they that keep his testimonies, and that seek him with the whole heart.
KJV

The "testimony," in the singular number, usually denotes the whole canon of the inspired writings—the revelation of the will of God to mankind—the standard of their faith. "Testimonies" appear, chiefly, to mark the preceptive part of Scripture; that part, in which this man of God always found his spiritual delight and perfect freedom. Mark his language: "I have rejoiced in the way of Your testimonies, as much us in all riches. Your testimonies have I taken as a heritage forever; for they are the rejoicing of my heart." Not, however, that this blessedness belongs to the mere outward act of obedience; but rather to that practical habit of mind, which seeks to know the will of God in order to "keep" it. This habit is under the influence of the promise of God, "I will put my Spirit within you, and cause you to walk in my statutes, and you shall keep my judgments, and do them." And in thus "keeping the testimonies of God," the believer maintains the character of one, that "seeks Him with the whole heart."

Oh! how many seek, and seek in vain, for no other reason, than because they do not "seek Him with the whole heart!" The worldling's "heart is divided; now shall he be found faulty." The professor "with his mouth shows much love; but his heart goes after his covetousness." The backslider "has not turned unto Me with his whole heart, but feignedly, says the Lord." The faithful, upright believer alone brings his heart, his whole heart, to the Lord: "When You said, Seek my face, my heart said unto You, Your face, Lord, will I seek." For he alone has found an object, that attracts and fills his whole heart, and, if he had a thousand hearts, would attract and fill them all. He has found his way to God by faith in Jesus. In that way he continues to seek. His whole heart is engaged to know and love more and more. Here alone the blessing is enjoyed, and the promise made good: "You shall seek Me, and find Me, when you shall search for Me with all your heart."

But let me not shrink from the question, Do I "keep His testimonies" from constraint, or from love? Surely when I consider my own natural aversion and enmity to the law of God, and the danger of self-deception in the external service of the Lord, I have much need to pray, "Incline my heart to Your testimonies. Give me understanding—save me, and I shall keep Your testimonies." And if they are blessed, who seek the Lord with their whole heart, how am I seeking Him? Alas! with how much distraction! with how little heart-work! Oh! let me "seek His strength" in order to "seek His face."

Lord! search—teach—incline—uphold me. Help me to plead Your gracious promise, "I will give them a heart to know Me, that I am the Lord; and they shall be my people, and I will be their God; for they shall return unto Me with their whole heart."

"Blessed are they that keep his testimonies." What! A second blessing? Yes, they are doubly blessed whose outward life is supported by an inward zeal for God's glory. In the first verse we had an undefiled way, and it was taken for granted that the purity in the way was not mere surface work, but was attended by the inward truth and life which comes of divine grace. Here that which was implied is expressed. Blessedness is ascribed to those who treasure up the testimonies of the Lord; in which is implied that they search the Scriptures, that they come to an understanding of them, that they love them, and then that they continue the practice of them. We must first get a thing before we can keep it. In order to keep it well we must get a firm grip of it: we cannot keep in the heart that which we have not heartily embraced by the affections. God's word is his witness or testimony to grand and important truths which concern himself and our relation to him: this we should desire to know; knowing it, we should believe it; believing it, we should love it; and loving it, we should hold it fast against all comers. There is a doctrinal keeping of the word when we are ready to die for its defense, and a practical keeping of it when we actually live under its power. Revealed truth is precious as diamonds, and should be kept or treasured up in the memory and in the heart as jewels in a casket, or as the law was kept in the ark; this, however, is not enough; for it is meant for practical use, and therefore it must be kept or followed, as men keep to a path, or to a line of business. If we keep God's testimonies they will keep us; they will keep us right in opinion, comfortable in spirit, holy in conversation, and hopeful in expectation. If they were ever worth having, and no thoughtful person will question that, then they are worth keeping; their designed effect does not come through a temporary seizure of them, but by a persevering keeping of them: "in keeping of them there is great reward."

We are bound to keep with all care the word of God, because it is his testimonies. He gave them to us, but they are still his own. We are to keep them as a watchman guards his master's house, as a steward husbands his lord's goods, as a shepherd keeps his employer's flock. We shall have to give an account, for we are put in trust with the gospel, and woe to us if we be found unfaithful. We cannot fight a good fight, nor finish our course, unless we keep the faith! To this end the Lord must keep us: only those who are kept by the power of God unto salvation will ever be able to keep his testimonies. What a blessedness is therefore evidenced and testified by a careful belief in God's word, and a continual obedience thereunto! God has blessed them, is blessing them, and will bless them forever. That blessedness which David saw in others he realized for himself, for in verse 168 he says, "I have kept your precepts and your testimonies," and in verses 54 to 56 he traces his joyful songs and happy memories to this same keeping of the law, and he confesses, "This I had because I kept your precepts." Doctrines which we teach to others we should experience for ourselves.

"And that seek him with the whole heart." Those who keep the Lord's testimonies are sure to seek after himself. If his word is precious, we may be sure that he himself is still more so. Personal dealing with a personal God is the longing of all those who have allowed the word of the Lord to have its full effect upon them. If we once really know the power of the gospel, we must seek the God of the gospel. "O that I knew where I might find HIM," will be our wholehearted cry. See the growth which these sentences indicate: first, in the way, then walking in it, then finding and keeping the treasure of truth, and, to crown all, seeking after the Lord of the way himself. Note also, that the further a soul advances in grace the more spiritual and divine are its longings: an outward walk does not content the gracious soul, nor even the treasured testimonies; it reaches out in due time after God himself, and when it in a measure finds him, still yearns for more of him, and seeks him still.

Seeking after God signifies a desire to commune with him more closely, to follow him more fully, to enter into more perfect union with his mind and will, to promote his glory, and to realize completely all that he is to holy hearts. The blessed man has God already, and for this reason he seeks him. This may seem a contradiction: it is only a paradox.

God is not truly sought by the cold researches of the brain: we must seek him with the heart. Love reveals itself to love: God manifests his heart to the heart of his people. It is in vain that we endeavor to comprehend him by reason; we must apprehend him by affection. But the heart must not be divided with many objects if the Lord is to be sought by us. God is one, and we shall not know him until our heart is one. A broken heart need not be distressed at this, for no heart is so whole in its seekings after God as a heart which is broken, whereof every fragment sighs and cries after the great Father's face. It is the divided heart which the doctrine of the text censures, and, strange to say, in scriptural phraseology, a heart may be divided and not broken, and it may be broken but not divided; and yet again it may be broken and be whole, and it never can be whole until it is broken. When our whole heart seeks the holy God in Christ Jesus it has come to him of whom it is written, "As many as touched him were made perfectly whole."

That which the Psalmist admires in this verse he claims in the tenth, where he says," With my whole heart have I sought you." It is well when admiration of a virtue leads to the attainment of it. Those who do not believe in the blessedness of seeking the Lord will not be likely to arouse their hearts to the pursuit; but he who calls another blessed because of the grace which he sees in him is on the way to gaining the same grace for himself.

If those who seek the Lord are blessed, what shall be said of those who actually dwell with him and know that he is theirs?

"To those who fall, how kind you are!

How good to those who seek!

But what to those who find? Ah! this

Nor tongue nor pen can show:

The love of Jesus—what it is,

None but his loved ones know."