Those who ·trust [hope in; wait on; *expect] the Lord will become strong again. They will rise up ·as an eagle in the sky [with wings like eagles]; they will run and not ·need rest [grow weary]; they will walk and not ·become tired [faint].
Isaiah 40:31 EXB *AMPC
Obviously, there are some things that we can do on our own. But, for lasting strength, the key to becoming strong again is making the Lord the center, focus and priority in our lives.
Where is your hope? Is it based in your own abilities? Or is your hope centered in the Lord?