Why sayest thou, O Jacob, and speakest , O Israel, My way is hid from the LORD, and my judgment is passed over from my God?
Hast thou not known ? hast thou not heard , that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary ? there is no searching of his understanding.
He giveth power to the faint; and to them that have no might he increaseth strength.
Even the youths shall faint and be weary , and the young men shall utterly fall :
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 ; and they shall walk , and not faint .
References for Isaiah 40:31