Isaiah 40:29 YLT

²⁷  Why sayest thou, O Jacob? and speakest thou, O Israel? 'My way hath been hid from Jehovah, And from my God my judgment passeth over.'

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,

³¹  But those expecting Jehovah pass 'to' power, They raise up the pinion as eagles, They run and are not fatigued, They go on and do not faint!