Charles Spurgeon Commentary Isaiah 57:20-21

"But the wicked are like the troubled sea; for it cannot rest, and its waters cast up mire and dirt. There is no peace, saith my God, to the wicked." — Isaiah 57:20-21 (ASV)

But the wicked are like the troubled sea, when it cannot rest, whose waters cast up mire and dirt. There is no peace, saith my God, to the wicked.

They may have the semblance of peace, or a false peace, but nothing which is worthy of being called peace.