When life gets hard, and we don't understand why, it can be easy to become afraid and doubt God; it may even seem that he is not there. But just because it seems that he is not with us in those hard times, and we can't see what he is doing through it, Isaiah 41:10 says "Fear not for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand." No matter how hard it gets, we know from God's promise in Isaiah 41:10 that he will uphold us and strengthen us through our hard times.
John 16:33- "I have said these things to you, that in me you may have peace. In the world you will have tribulation. but take heart; I have overcome the world." We don't need to understand why God is putting us through these hard times, we just need to know that he will help. He will strengthen and uphold us. We don't see the big picture, but God does and he is in control. It lends great comfort to know and believe that everything God does is for our good even when, through our limited vision, it may not look like it.