A sacred hymn based on Isaiah 40:28-31.  Watch on YouTube: Hast Thou Not Known

See text below.

Hast thou not known? Hast thou not heard,

that the everlasting God, Creator of the ends of the earth,

fainteth not, fainteth not, nor is weary?

There  is no searching of his understanding.

He giveth pow'r to the faint;

and to them that lack might he increases strength.

E'en the youths shall faint and be weary.

But they that wait upon the Lord shall renew their strength;

they shall mount up with eagles wings;

they shall run, and not be weary;

they shall walk, and not faint, not faint.

They shall run and they shall not faint.