28 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. 29 He giveth power to the faint; and to them that have 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 ; and they shall walk , and not faint .