Though young men faint and grow weary, and youths stagger and fall, They that hope in the LORD will renew their strength, they will soar as with eagles' wings; They will run and not grow weary, walk and not grow faint. (Is 40:25-31)
https://bible.usccb.org/bible/readings/121124.cfm
The long journey of Advent would not be possible at all if it were not for the grace of the Lord. With God’s grace we soar with eagles’ wings!