Let my tongue sing of Your word, For all Your commandments are righteousness.
NASB95
My tongue will sing of your word, for all your commandments are right.
ESV
My tongue shall speak of thy word: for all thy commandments are righteousness.
KJV

To speak of God and for Him, will be the desire and delight of him, whose heart and lips have been taught to utter praise. Yet alas! how seldom is "our conversation seasoned with grace!" So much of this poor world's nothing! So little of Jesus! 'If only five minutes can be redeemed for prayer, for Scripture, or for thought; let it be seized as an inestimable jewel. If we can pass five minutes less in foolish or ensnaring company, secure the advantage.' If vain words are flowing up from the bottom, look on the restraint that represses them from our lips as a triumphant mercy. This active energy of Christian discipline will communicate a fragrance to our conversation, most acceptable to our beloved Lord; and will make our "lips" enriching, feeding, and instructive to His church. And truly when we see how hardly men judge of Him, how they count His "commandments grievous," and His ways "unequal," it will be delightful to bear our testimony, that all His commandments are righteousness; restraining the power of sin, and conforming the soul to His image.

"Lord, open my lips, that my tongue may speak of Your word." Honor me, O my God, by helping me to show, that all Your commandments are righteousness. In our own atmosphere, and our own spirit, how often do we pour out our words without waiting on the Lord for unction and power; speaking of the things of God without His presence and blessing! Were we living fully in the atmosphere and breathing of prayer, enriched with habitual meditation in the word; how much more fluent would our tongue be to speak of His word "to the use of edifying!" It would be made really our own, known experimentally; and then how cheering, how enlivening the conversation of the man of God! His "light so shines before men, that" they are constrained to "glorify His Father which is in heaven."

Perhaps, Believer, supposed inability, natural bashfulness, or want of seasonable opportunity, may restrain your lips. But under the most unfavorable circumstances something may generally be said or done in the service of God. And while it is well carefully to watch against the "talk of the lips, which tends only to poverty;" beware, lest, through the scrupulous tenderness of conscience, "Satan get advantage" to shut the mouth of the faithful witnesses of God, and thus to weaken that cause, which it is your first desire to support. Guard then against the influence of unbelief. Bring your weakness and inability daily to the Lord. Let any dreaded inconsistency of profession be searched out, examined, and lamented before Him, and opposed in dependence on His grace; but never let it be made a covering for indolence, or supply fuel for despondency. Consider how your interest in a Divine Savior makes your way open to bring all your wants to Him. Be encouraged therefore to ask for the Spirit of God to guide your lips: that a poor weak sinner may be permitted to "show forth the praises of Him," who is surrounded with all the Hosts of Heaven.

When however our silence has arisen from the too feeble resistance of our natural carelessness and indolence, the recollection of many important opportunities of glorifying our Savior, lost beyond recall, may well excite the prayer, "Deliver me from blood-guiltiness, O God; and my tongue shall sing aloud of Your righteousness." Oh! to have the preciousness of souls deeply impressed upon our hearts! Oh! for that compassionate love, that would never suffer us to meet a fellow-sinner without lifting up our hearts to God on his behalf: without making an effort to win his soul to Christ, and manifesting an earnest desire for his salvation! What loss is there to our own souls in these neglected opportunities of blessing the souls of others! For never do we receive richer fruit to ourselves, than in the act or endeavor to communicate to others. The heart becomes enlarged by every practical exercise of Christian love. Yet much simplicity, much unction from above, much tenderness of heart, much wisdom combined with boldness—is needed in our daily conversation, that we may "make manifest the savor of the knowledge of Christ in every place;" and especially, that our very desires to bring sinners to the Gospel may proceed, not from a goading conscience, much less from pride and vainglory; but from the pure source of love to Christ and to our fellow-sinners. For even if we are as "full of matter" as Elihu was, nothing will be said for God—nothing, that will "minister grace to the hearers," unless the influence of the Divine Spirit fills our hearts, as "a well of water, springing up into everlasting life"—a blessing to all around us.

"My tongue shall speak of your word." When he had done singing he began preaching. God's tender mercies are such that they may be either said or sung. When the tongue speaks of God's word it has a most fruitful subject; such speaking will be as a tree of life, whose leaves shall be for the healing of the people. Men will gather together to listen to such talk, and they will treasure it up in their hearts. The worst of us is, that for the most part we are full of our own words, and speak but little of God's word. Oh, that we could come to the same resolve as this godly man, and say henceforth, "My tongue shall speak of your word"! Then should we break through our sinful silence; we should no more be cowardly and halfhearted, but should be true witnesses for Jesus. It is not only of God's works that we are to speak, but of his word. We may extol its truth, its wisdom, its preciousness, its grace, its power; and then we may tell of all it has revealed, all it has promised, all it has commanded, and all it has effected. The subject gives us plenty of sea-room; we may speak on forever: the tale is forever telling, yet untold.

"For all your commandments are righteousness." David appears to have been mainly enamored of the preceptive part of the word of God, and concerning the precept his chief delight lay in its purity and excellence. When a man can speak thus from his heart, his heart is indeed a temple of the Holy Spirit.

He has said aforetime (verse 138), "Your testimonies are righteous," but here he declares that they are righteousness itself. The law of God is not only the standard of right, but it is the essence of righteousness. This the Psalmist affirms of each and every one of the precepts without exception. He felt like Paul—"The law is holy, and the commandment holy, and just, and good." When a man has so high an opinion of God's commandments, it is little wonder that his lips should be ready to extol the ever-glorious One.