Isaiah 40:31
but those who wait for the LORD will renew their strength. They will mount up with wings like eagles. They will run, and not be weary. They will walk, and not faint.
World English Bible (Public Domain)
In context
Before · Isaiah 40:29–30
29He gives power to the weak. He increases the strength of him who has no might. 30Even the youths faint and get weary, and the young men utterly fall;
31but those who wait for the LORD will renew their strength. They will mount up with wings like eagles. They will run, and not be weary. They will walk, and not faint.