Isaías 40
Catholic Public Domain Version
29It is he who gives strength to the weary, and it is he who increases fortitude and strength in those who are failing.
Reina-Valera 1909
29El da esfuerzo al cansado, y multiplica las fuerzas al que no tiene ningunas.
King James Version
29He giveth power to the faint; and to them that have no might he increaseth strength.
World English Bible
29He gives power to the weak. He increases the strength of him who has no might.