“Knowest thou not? or hast thou not heard, that the everlasting God,

the Lord hath created the ends of the earth?

he neither fainteth, nor is weary:

there is no searching of his understanding.

But he giveth strength unto him that fainteth,

and unto him that hath no strength, he increaseth power.

Even the young men shall faint, and be weary,

and the young men shall stumble and fall.

But they that wait upon the Lord, shall renew their strength:

they shall lift up the wings, as the eagles:

they shall run, and not be weary,

and they shall walk and not faint.

Isaiah 40:28-31