|Matthew Henry's Concise Commentary|
119:9-16 To original corruption all have added actual sin. The ruin of the young is either living by no rule at all, or choosing false rules: let them walk by Scripture rules. To doubt of our own wisdom and strength, and to depend upon God, proves the purpose of holiness is sincere. God's word is treasure worth laying up, and there is no laying it up safe but in our hearts, that we may oppose God's precepts to the dominion of sin, his promises to its allurements, and his threatenings to its violence. Let this be our plea with Him to teach us his statutes, that, being partakers of his holiness, we may also partake of his blessedness. And those whose hearts are fed with the bread of life, should with their lips feed many. In the way of God's commandments there is the unsearchable riches of Christ. But we do not meditate on God's precepts to good purpose, unless our good thoughts produce good works. I will not only think of thy statutes, but do them with delight. And it will be well to try the sincerity of our obedience by tracing the spring of it; the reality of our love by cheerfulness in appointed duties.
Verse 13. - With my lips have I declared all the judgments of thy mouth. "Out of the abundance of the heart the mouth speaketh." The "word" hid in the psalmist's heart (ver. 11) could not but rise to his lips on fit occasion, and be set forth before the people for their edification - more especially as there was an express command binding upon all Israelites to teach the Law to their children and dependants (see particularly Deuteronomy 6:7).
Gill's Exposition of the Entire Bible
With my lips have I declared all the judgments of thy mouth. Not the judgments of his hand, what he executes on an ungodly world; nor the intricate dispensations of his providence; those judgments of his now unsearchable, though before long will be manifest; these the psalmist could not declare: but the revelation of the will of God, what his mouth has uttered, doctrines and precepts of righteousness and truth; these, though David had them in his heart, he did not conceal them from men; but out of the abundant experience he had of them in his heart, his lips spake of them, of their nature and excellency, and usefulness unto others: and whereas he desired to be instructed more and more in them, it was in order to teach them, and declare them to others; even all of them, in the most sincere and impartial manner; see Acts 20:27.
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