NET

34 But the one who will rescue them is strong. His name is the Lord of Heaven’s Armies. He will strongly champion their cause. As a result he will bring peace and rest to the earth, but trouble and turmoil to the people who inhabit Babylonia.

Darby

34 Their Redeemer is strong; Jehovah of hosts is his name: he will thoroughly plead their cause, that he may give rest to the land, and disquiet the inhabitants of Babylon.

KJV

34 Their Redeemer [is] strong; the LORD of hosts [is] his name: he shall throughly plead their cause, that he may give rest to the land, and disquiet the inhabitants of Babylon.