The art of good thinking is to carry thought to its logical conclusion. Sir Isaac Newton is said to have claimed no more for his profound theories than that he took the lines of his thought farther than other men did and so perceived the hidden 'laws' which he formulated. That is a lesson which Christians can learn from. The mere thought of God should end all anxiety. Then why in my case does it not? Because I fail to carry thought to its proper conclusion.
If God be God then no insoluble problems exist. And if God be my God then no problem of mine is without its appropriate solution. There is in God what exactly is needed to solve every riddle of life. Such a Being is God that he comprehends in himself all that we could ever need to neutralize all evils, veto all temptations, negative all sorrows, and compensate for all losses....To be told 'All things work together for good' (Romans 8:28) to us is to have more than a cordial. It is to have the elixir of life.
It must follow from what has been said that the Christian's degree of peace of mind depends on his spiritual ability to interpose the thought of God between himself and his anxiety. When the dark cloud of trouble first looms up on the horizon of our thought, then it is time to apply our theology in downright earnest. For it is not outward circumstances that can drag us down, but our own reaction of despair to them, when we fail to perceive the hidden hand of God in all events.
There is no situation in life too hard for God. But many situations look too hard at first sight. These are ordained to give us room to wait on God for his deliverance. There is a blessing attached to waiting patiently on God in evil days...Let us remember God and take fresh courage. He who believes shall not make haste, and, conversely they shall not be ashamed who wait for God. (Isaiah 28:16, 49:23)
It is instinctive for the Christian in every time of fear or trouble to turn his thoughts to God....this is an act of faith and worship and highly pleasing to God. If God were only mental fiction, there would be nothing more to commend the practice of devout meditation on his excellence and glory than that it was pious optimism, wishful thinking which benefits the mind just so much as 'positive thinking' is said to do and no more. Since, however, God exist in reality and is not a spiritual medicine invented by our fears, it must follow that life's secret very largely consists in holding him in our thoughts as much as possible and especially in times of fear and need.
~ The Thought Of God by Maurice Roberts