Even when we think we can go on no more, here comes our super hero, God. He's always there when we need Him, isn't He? He never leaves us or forsakes us. If we're feeling listless and unmotivated, God gives us just what we need to continue on. Getting that burst of energy that comes right when we need it, is like a runner's high. After a runner has been running for awhile and should be ready to give up, they get a second wind. They have a new and fresh burst of energy. I used to be an avid runner, so I know the experience and it's real. So you see, there's no need to ever give up on what God has for you. If you're tired, it's ok. It's allowed. Yet know this: "There has never been the slightest doubt in my mind that the God who started this great work in you would keep at it and bring it to a flourishing finish on the very day Christ Jesus appears" Philippians 1:6.
That means whatever God placed in you to do, will get done. It's about letting our faith (and works) carry us all the way and never stopping. Remember, the God of the possible makes all things available to us that we need not worry. We get constant bursts of energy whenever we call upon the Lord of lords to help us. Isn't that amazing? It's the God working in us to continue on. Philippians 2:13 says, "that energy is God's energy, an energy deep within you, God himself willing and working at what will give him the most pleasure." God knows what we need and when we need it.