Until we know Jesus, God is merely a concept, and we can't have faith in Him. But once we hear Jesus say, "He who has seen Me has seen the Father" (John 14:9) we immediately have something that is real, and our faith is limitless.
Often times God demonstrates His faithfulness in adversity by providing for us what we need to survive. He does not change our painful circumstances. He sustains us through them.
If I cannot hear "The sound of rain' long before the rain falls, and then go out to some hilltop of the Spirit, as near to my God as I can and have faith to wait there with my face between my knees, though six times or sixty times I am told "There is nothing', till at last there arises a little cloud out of the sea, then I know nothing of Calvary love.
Faith makes all evil good to us, and all good better; unbelief makes all good evil, and all evil worse. Faith laughs at the shaking of the spear; unbelief trembles at the shaking of a leaf, unbelief starves the soul; faith finds food in famine, and a table in the wilderness. In the greatest danger, faith says, "I have a great God." When outward strength is broken, faith rests on the promises. In the midst of sorrow, faith draws the sting out of every trouble, and takes out the bitterness from every affliction.
He who sows, even with tears, the precious seed of faith, hope, and love, shall doubtless come again with joy, bringing his sheaves with him, because it is the very nature of that seed to yield a joyful harvest.
Prayer is the supreme activity of all that is noblest in our personality, and the essential nature of prayer is faith.