|Matthew Henry's Concise Commentary|
26:1-4 That day, seems to mean when the New Testament Babylon shall be levelled with the ground. The unchangeable promise and covenant of the Lord are the walls of the church of God. The gates of this city shall be open. Let sinners then be encouraged to join to the Lord. Thou wilt keep him in peace; in perfect peace, inward peace, outward peace, peace with God, peace of conscience, peace at all times, in all events. Trust in the Lord for that peace, that portion, which will be for ever. Whatever we trust to the world for, it will last only for a moment; but those who trust in God shall not only find in him, but shall receive from him, strength that will carry them to that blessedness which is for ever. Let us then acknowledge him in all our ways, and rely on him in all trials.
Verse 3. - Thou wilt keep him, etc.; literally, the steadfast mind thou wilt keep in peace, in peace; i.e. "in perfect peace" (comp. Psalm 112:7, 8). The writer's mind throughout the first paragraph of his" song" (vers. 1-4)"is running" (as Mr. Cheyne well observes) "on the security and immovableness of the new Jerusalem." All is peace and sure defense on God's side; all is trust and perfect confidence on the side of man. The first words of the verse may be taken in various ways - the above rendering (which seems to us the best) is that of Delitzsch and Kay.
Gill's Exposition of the Entire Bible
Thou wilt keep him in perfect peace,.... Peace with God in Christ through his blood, in a way of believing, and as the fruit and effect of his righteousness being received by faith; this is not always felt, received, and enjoyed in the soul; yet the foundation of it always is, and is perfect; and besides, this peace is true, real, and solid; in which sense the word "perfect" is used, in opposition to a false and imaginary one; and it will end in perfect peace in heaven: moreover, the word "perfect" is not in the Hebrew text, it is there "peace, peace"; which is doubled to denote the certainty of it, the enjoyment of it, and the constancy and continuance of it; and as expressive of all sorts of peace, which God grants unto his people, and keeps for them, and them in; as peace with God and peace with men, peace outward and peace inward, peace here and peace hereafter; and particularly it denotes the abundance of peace that believers will have in the kingdom of Christ in the latter day; see Psalm 72:7,
whose mind is stayed on thee; or "fixed" on the love of God, rooted and grounded in that, and firmly persuaded of interest in it, and that nothing can separate from it; on the covenant and promises of God, which are firm and sure; and on the faithfulness and power of God to make them good, and perform them; and on Christ the Son of God, and Saviour of men; upon him as a Saviour, laying the whole stress of their salvation on him; upon his righteousness, for their justification; upon his blood and sacrifice, for atonement, pardon, and cleansing; on his fulness, for the supply of their wants; on his person, for their acceptance with God; and on his power, for their protection and preservation; see Isaiah 10:20,
because he trusteth in thee; not in the creature, nor in any creature enjoyment, nor in their riches, nor in their righteousness, nor in their own hearts, nor in any carnal privileges: only in the Lord, as exhorted to in the next verse Isaiah 26:4; in the Word of the Lord, as the Targum, that is, in Christ.
Jamieson-Fausset-Brown Bible Commentary
3. mind … stayed—(Ps 112:7, 8). Jesus can create "perfect peace" within thy mind, though storms of trial rage without (Isa 57:19; Mr 4:39); as a city kept securely by a strong garrison within, though besieged without (so Php 4:7). "Keep," literally, "guard as with a garrison." Horsley translates, (God's) workmanship (the Hebrew does not probably mean "mind," but "a thing formed," Eph 2:10), so constantly "supported"; or else "formed and supported (by Thee) Thou shalt preserve (it, namely, the righteous nation) in perpetual peace."
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