Charles Ellicott Commentary Isaiah 27:5

"Or else let him take hold of my strength, that he may make peace with me; [yea], let him make peace with me." — Isaiah 27:5 (ASV)

Or let him take hold of my strength. —Or, Let him lay hold on my fortress: let him make peace with Me. The thought implied is that even the enemies of Jehovah, if repentant, may find in Him “their castle and deliverer.” To them, too, there is the gracious invitation to make peace.