Isaiah 40:28-31
28 Do you not know?
Have you not heard?
The LORD is the everlasting God,
the Creator of the ends of the earth.
He will not grow tired or weary,
and his understanding no one can fathom.

29 He gives strength to the weary
and increases the power of the weak.

30 Even youths grow tired and weary,
and young men stumble and fall;

31 but those who hope in the LORD
will renew their strength.
They will soar on wings like eagles;
they will run and not grow weary,
they will walk and not be faint.

Did you realize that there are four types of energy that you use to keep going? Many people understand that eating right and exercising are keys to having energy; however, this is really not enough to accomplish everything that you want in life. In fact, if you waste any of your other energy sources - mental, emotional, and spiritual - you will run out of gas no matter how much you work out or how many tofu burgers you consume.

One of the biggest wasters of energy is negative emotions. Whether it's bursts of anger or battles with guilt and anxiety, negative emotions will burn up your energy and desire. Energy consumed by emotional imbalances will affect all of the other energy sources immensely. Think about how difficult it is to concentrate when you are overly anxious about having enough money to cover the month.

So, what's the answer? Be anxious for nothing, instead cast your cares on God for he cares for you. When you fill up your Spiritual reserve, the other energy sources are easier to keep full. You can't neglect any of them, but remember that God is the source of all energy. So, next time you run out of gas, look turn to the One who can help.