We can only encourage others when we are encouraged ourselves. Courage from God is unlimited. That means there is always a surplus available to share with others. When God is sufficient to fill our needs, God has plenty to fill their needs as well. Caleb understood this and he consistently drew the courage he needed from God.
And now, behold, the LORD has kept me alive, just as he said, these forty-five years since the time that the LORD spoke this word to Moses, while Israel walked in the wilderness. And now, behold, I am this day eighty-five years old. I am still as strong today as I was in the day that Moses sent me; my strength now is as my strength was then, for war and for going and coming. So now give me this hill country of which the LORD spoke on that day, for you heard on that day how the Anakim were there, with great fortified cities. It may be that the LORD will be with me, and I shall drive them out just as the LORD said." (Joshua 14:10-12 ESV)
How about you? Do you draw enough courage from God to fill you up and remove all fear? Do you think you would do that at 85 years old? Does God provide you enough courage to flow through to others around you? Do you draw courage from God?