Isaiah 40:27-31

Leeser(i) 27 Why wilt thou say, O Jacob, and speak, O Israel, My way is hidden from the Lord, and my cause hath passed from the cognizance of my God? 28 Dost thou not know? hast thou not heard? The God of everlasting is the Lord, is the Creator of the ends of the earth; he will not be faint and weary; unsearchable is his understanding. 29 He giveth to the faint strength; and to the powerless he imparteth much might. 30 Though youths should grow faint and be weary, and young men should utterly stumble: 31 Yet they that wait upon the Lord shall acquire new strength, they shall mount up with wings as eagles; they shall run and not be weary, they shall walk, and not become faint.