One of the duties of the heart is to trust in God. Apart from the Bible which commands us to have trust in God, we can come to the same conclusion as a result of our own reflection. For in God alone are combined all the conditions necessary to confidence. He has the power to protect and help us, and the knowledge of our needs. He is kind and generous and has a love for us and an interest in our welfare, as we have shown in a previous discussion. Trust in God is of advantage religiously in giving a person peace of mind, independence and freedom to devote himself to the service of God without being worried by the cares of the world. He is like the alchemist who changes lead into silver, and silver into gold. If he has money he can make good use of it in fulfilling his duties to God and man. If he has not, he is grateful for the freedom from care which this gives him. He is secure against material worries. He does not have to go to distant lands to look for support, or to engage in hard and fatiguing labor, or to exploit other people. He chooses the work that is in consonance with his mode of life, and gives him leisure and strength to do his duty to God and man. The suffering of the good and the prosperity of the bad, which apparently contradicts our conclusion, is a problem as old as the world, and is discussed in the Bible. There is no one explanation to cover all cases, hence no solution is given in the Bible. But several reasons may be brought forward for this anomaly. The righteous man may suffer by way of punishment for a sin he has committed. He may suffer in this world in order that he may be rewarded in the next. His suffering may be an example of patience and goodness to other people; especially in a bad generation, to show off their wickedness by contrast with his goodness. Or finally the good man may be punished for not rebuking his generation of evil doers. In a similar way we may explain the prosperity of the wicked. Trust in God does not signify that one should neglect one's work, be careless of one's life, health and well-being, or abandon one's effort to provide for one's family and dependents. No, one must do all these things conscientiously, at the same time feeling that if not for the help of God all effort would be in vain. In the matter of doing one's duty and observing the commandments, whether of the limbs or the heart, trust in God can apply only to the last step in the process, namely, the realization in practice. He must trust that God will put out of the way all obstacles and hindrances which may prevent him from carrying out his resolutions. The choice and consent must come from a man's own will, which is free. The most he may do is to trust that God may remove temptations.