Isaiah 40:28-30

Young's Literal Translation

²⁸ Hast thou not known? hast thou not heard? The God of the age -- Jehovah, Preparer of the ends of the earth, Is not wearied nor fatigued, There is no searching of His understanding.

²⁹ He is giving power to the weary, And to those not strong He increaseth might.

³⁰ Even youths are wearied and fatigued, And young men utterly stumble,