A call and a welcome is extended to any sons of Israel remaining in Babylon. They are invited to return to Zion. But the prophet seems to go beyond Jerusalem to Zion which is mentioned in Hebrews 12:24, “But ye are come unto Mount Zion, and unto the city of the living God, the Heavenly Jerusalem, and to an innumerable company of angels”. This is the Jerusalem spoken of in Gal. 4:26, “But Jerusalem which is above is free, which is the Mother of us all”.