Two words often used in the same context, but with very different meanings. It is one thing to have faith to get married, for example. The difficult part is to maintain the same faith to remain married. This is where trust comes in. Trust is the continuity of faith. The greater the cultivation of faith, the greater the trust.
I have been young, and now am old; yet I have not seen the righteous forsaken, nor his descendants begging for bread. Psalm 37.25
King David had plenty of experience, both with faith and with trusting in God. As a young man, he gathered wonderful experiences through acts of faith. For this reason, he learned how to trust the Author of his faith. Despite the gravity of his mistakes, he kept his trust intact. The care he had for his faith kept him humble to acknowledge his sin and be forgiven. This was enough to keep his name written in the Book of Life.
Faith depends on trust to keep what is conquered with it. Many achievements of faith are lost because of the loss of faith. Of course! Those who succeed by faith, and then lose the faith, will also lose the success achieved.
Many illnesses, healed through faith, have returned because of an absent or unhealthy faith. This happens because people are unaware of the fact that you conquer by faith, but you lose what was conquered by doubts. Those who are foolish relax in the faith that led them to the conquest. When this happens, doubt advances and neutralizes the power of faith, leading to failure.
Just as faith is power, doubt is also power. As long as the power of faith is active, the power of doubt loses its strength. But when the power of faith becomes relaxed, the power of doubt will obviously prevail.
Faith increases spiritual immunity, but when this immunity becomes low because of the absence of faith, the power of doubt prevails and spiritual immunity sinks with the conquests of faith.
For I am not ashamed of the gospel of Christ, for it is the power of God to salvation for everyone who believes… For in it the righteousness of God is revealed from faith to faith; as it is written, “The just shall live by faith.” Romans 1.16-17
This is why we must take care and maintain our faith. Through it, a person becomes worthy (righteous) before God. This is a crucial fact that cannot be ignored. Faith must be cared for and maintained so that its achievements last.
It is not difficult to conquer; the difficult part is keeping what is conquered. This is only possible through the power of trust.