Isaiah 40:28-30 Holman Christian Standard Bible (HCSB)
28 Do you not know?
Have you not heard?
Yahweh is the everlasting God,
the Creator of the whole earth.
He never grows faint or weary;
there is no limit to His understanding.
29 He gives strength to the weary
and strengthens the powerless.
30 Youths may faint and grow weary,
and young men stumble and fall,