King James Bible
Sing, O heavens; and be joyful, O earth; and break forth into singing, O mountains: for the LORD hath comforted his people, and will have mercy upon his afflicted.

New King James Version
Sing, O heavens! Be joyful, O earth! And break out in singing, O mountains! For the LORD has comforted His people, And will have mercy on His afflicted.

American Standard Version
Sing, O heavens; and be joyful, O earth; and break forth into singing, O mountains: for Jehovah hath comforted his people, and will have compassion upon his afflicted.

Berean Study Bible
Shout for joy, O heavens; rejoice, O earth; break forth in song, O mountains! For the LORD has comforted His people, and He will have compassion on His afflicted ones.

Douay-Rheims Bible
Give praise, O ye heavens, and rejoice, O earth, ye mountains, give praise with jubilation: because the Lord hath comforted his people, and will have mercy on his poor ones.

English Revised Version
Sing, O heavens; and be joyful, O earth; and break forth into singing, O mountains: for the LORD hath comforted his people, and will have compassion upon his afflicted.

World English Bible
Sing, heavens; and be joyful, earth; and break forth into singing, mountains: for Yahweh has comforted his people, and will have compassion on his afflicted.

Young's Literal Translation
Sing, O heavens, and joy, O earth, And break forth, O mountains, with singing, For comforted hath Jehovah His people, And His afflicted ones He doth pity.

Isaiah 49:13 Additional Translations ...