Psalms 119:44

"So shall I always keep Your law" [Psalm 119:44]: that is, if You will not take the word of Your truth out of my mouth. "Yea, unto age, and age of age:" he shows what he meant by "alway." For sometimes by "alway" is meant, as long as we live here; but this is not, "unto age, and age of age." For it is better thus translated than as some copies have, "to eternity, and to age of age," since they could not say, and to eternity of eternity. That law therefore should be understood, of which the Apostle says, "Love is the fulfilling of the law." [Romans 13:10] For this will be kept by the saints, from whose mouth the word of truth is not taken, that is, by the Church of Christ Herself, not only during this world, that is, until this world is ended; but for another also which is styled, "world without end.". ..

So shall I keep thy law continually,....

The sentiment more fully carried out. God's mercies and salvation, as revealed in His Word, provide hope of forgiveness for the past and security in a righteous course for the future.

"So shall I keep thy law continually for ever and ever." Nothing more effectually binds a man to the way of the Lord than an experience of the truth of his word, embodied in the form of mercies and deliverances. Not only does the Lord's faithfulness open our mouths against his adversaries, but it also knits our hearts to his fear, and makes our union with him more and more intense. Great mercies lead us to feel an inexpressible gratitude which, falling to utter itself in time, promises to engross eternity with praises. To a heart on flame with thankfulness, the "always, unto eternity and perpetuity," of the text will not seem to be redundant; yea, the hyperbole of Addison in his famous verse will only appear to be solid sense:— God's grace alone can enable us to keep his commandments without break and without end; eternal love must grant us eternal life, and out of this will come everlasting obedience. There is no other way to ensure our perseverance in holiness but by the word of truth abiding in us, as David prayed it might abide with him. The verse begins with "So," as did Psa 119:42. When God grants his salvation we are so favoured that we silence our worst enemy and glorify our best friend. Mercy answereth all things. If God doth but give us salvation we can conquer hell and commune with heaven, answering reproaches and keeping the law, and that to the end, world without end. We may not overlook another sense which suggests itself here. David prayed that the word of truth might not be taken out of his mouth, and so would he keep God's law: that is to say, by public testimony as well as by personal life, he would fulfil the divine will, and confirm the bonds which bound him to his Lord for ever.

"So shall I keep thy law continually for ever and ever." Nothing more effectually binds a man to the way of the Lord than an experience of the truth of his word, embodied in the form of mercies and deliverances. Not only does the Lord's faithfulness open our mouths against his adversaries, but it also knits our hearts to his fear, and makes our union with him more and more intense. Great mercies lead us to feel an inexpressible gratitude which, falling to utter itself in time, promises to engross eternity with praises.