John 16:33

I have told you these things, so that in Me you may have (perfect) peace. In the world you have tribulation and distress and suffering, but be courageous (be confident, be undaunted, be filled with joy); I have overcome the world. (My conquest is accomplished, My victory abiding.)

We should study the Bible and keep our minds renewed to the point that when a problem comes our way, our first thought is, “God already has the answer to that!” We never let fear in and let faith in the promises of God act on our behalf. Our courage increases when we know we have the answer. It is essential to remind ourselves that Jesus defeats the enemy.