You keep him in perfect peace whose mind is stayed on you, because he trusts in you.
3. The thought is fixed; thou wilt keep peace, peace. {Bogus footnote} As the Hebrew word יצר (Yĕtzĕr) signifies both “imagination” or “creature,” and “thought,” some render it, “By a settled foundation thou wilt keep peace;” as if the Prophet meant, that when men, amidst the convulsions of the world, continue to rest firmly on God, they will always be safe.
To the prophecies of gospel grace very fitly is a song annexed, in which we may give God the glory and take to ourselves the comfort of that grace: In that day, the gospel day, which the day of the victories and enlargements of the Old Testament church was typical of (to some of which perhaps this has a primary reference), in that day this...
Commenting on Isaiah 26:1-4
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...