Isaiah 40:31 ..but they who wait for the LORD shall renew their strength; they shall mount up with wings like eagles; they shall run and not be weary; they shall walk and not faint. (Holy Bible ESV)
My pastor talked about what this scripture means in a sermon a long time ago. He explained the word "wait" to mean "serving". Like a "waiter" would serve. He said that as we work for the Lord, through serving others, our energy will grow exponentially. I have never forgotten this interpretation, because I am not very good at sitting still and "waiting". Ahhhhh.....but to get busy and work for the LORD....this I can do....but am I actually doing it?