New Living Translation
This is what the Sovereign LORD, the Holy One of Israel, says: “Only in returning to me and resting in me will you be saved. In quietness and confidence is your strength. But you would have none of it.

American Standard Version
For thus said the Lord Jehovah, the Holy One of Israel, In returning and rest shall ye be saved; in quietness and in confidence shall be your strength. And ye would not:

Berean Study Bible
For the Lord GOD, the Holy One of Israel, has said: “By repentance and rest you would be saved; your strength would lie in quiet confidence—but you were not willing.”

Douay-Rheims Bible
For thus saith the Lord God the Holy One of Israel: If you return and be quiet, you shall be saved: in silence and in hope shall your strength be. And you would not:

English Revised Version
For thus said the Lord GOD, the Holy One of Israel, In returning and rest shall ye be saved; in quietness and in confidence shall be your strength: and ye would not.

King James Bible
For thus saith the Lord GOD, the Holy One of Israel; In returning and rest shall ye be saved; in quietness and in confidence shall be your strength: and ye would not.

World English Bible
For thus said the Lord Yahweh, the Holy One of Israel, "You will be saved in returning and rest. Your strength will be in quietness and in confidence." You refused,

Young's Literal Translation
For thus said the Lord Jehovah, The Holy One of Israel: 'In returning and rest ye are saved, In keeping quiet and in confidence is your might, And ye have not been willing.

Isaiah 30:15 Additional Translations ...