Isaiah 40:29-31 English Revised Version (ERV)

29. He giveth power to the faint; and to him that hath no might he increaseth strength.

30. Even the youths shall faint and be weary, and the young men shall utterly fall:

31. but they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; they shall walk, and not faint.

Isaiah 40