About being strong and courageous in Christ:

Psalms 27:1 The LORD is my light and my salvation-- whom shall I fear? The LORD is the stronghold of my life-- of whom shall I be afraid?

In our natural world without Christ, we are often afraid or weak. However, we live in a super world, a super natural world where we don't need to be afraid or weak. Although we live in a natural world, in our other super natural world we have the Lord on our side. Being weak and fearful is a natural thing in our natural world. However, in our super natural world there need not be any darkness because the Lord is our Light. There need not be any darkness even in our natural world because the Lord is our redeemer and our Lord lives in both our natural world as well as in our super natural world. In our natural world there are many unknowns in life. In addition, much of our natural future is fearful. However, we live in a super natural world where there are many known things rather than unknown things. In our super natural world, the Lord is with us and we don't need to be afraid. With Christ living and alive within us, we know even if our own natural strengths and natural courage run out, the Lord is here to supply us with His super natural power'so much power we will never be able to use the power He gives us.