NASB 1995
Encourage the exhausted, and strengthen the feeble.

American Standard Version
Strengthen ye the weak hands, and confirm the feeble knees.

Berean Study Bible
Strengthen the limp hands and steady the feeble knees!

Douay-Rheims Bible
Strengthen ye the feeble hands, and confirm the weak knees.

English Revised Version
Strengthen ye the weak hands, and confirm the feeble knees.

King James Bible
Strengthen ye the weak hands, and confirm the feeble knees.

World English Bible
Strengthen the weak hands, and make firm the feeble knees.

Young's Literal Translation
Strengthen ye the feeble hands, Yea, the stumbling knees strengthen.

Isaiah 35:3 Additional Translations ...