A man asked the following question: He is leaving a job that he had for many years and now has two potential job offers. One is close to his home and will earn him enough to cover his expenses, but there is no potential to earn more through commissions. The second job is an hour drive from his home, which will require more hours of work and is a more difficult job. It will give him the same salary, but has potential for more income based on commission. He wanted to take the local job, but his wife is wondering, perhaps, if he is supposed to make more money, he will now be limiting himself by accepting the job that pays less. The Chovot Halevavot in the Shaar Habitachon (chap. 4) deals with this question. He says, when it comes to parnasa, a person should work with the goal of doing enough just to cover his basic requirements in this world. If Hashem determines that a person should be wealthy, he will earn that wealth without having to invest any additional effort. And if he is not destined to be wealthy, even if everyone in the entire world, both in the heavens and the earth, all the angels and human beings would try to help him and add to what he is getting, they would not succeed. This can be understood in light of what the Chovot Halevavot teaches us in the previous chapter. There he explains the rationale of why Hashem wants us to make hishtadlut in the first place. One reason is because in the process of earning a livelihood, there are numerous tests to overcome and by a person staying faithful to Hashem throughout the process, he will earn immense reward in the Next World. The second reason is because if a person would have too much free time, it would lead to sin. The conventional thinking is that we need to work to earn money. Chovot Halevavot is teaching us Hashem doesn't need our efforts to give us money. He has a completely different set of reasons for why we go to work. This means that Hashem required us to make a certain effort to earn a livelihood and once we've done that, He will give us exactly what we are destined to earn. The effort required is just to earn the bare minimum to get by, and therefore, regarding the current question, it is obvious that the man should take the closer job. His goal is to use the extra time to learn Torah and grow spiritually. Since the job will cover his basic expenses, it's a sufficient hishtadlut. He will earn every penny that Hashem decrees for him to have. If it is more than the employer is currently offering him, it will come another way, or the employer will give him a raise. Hashem has infinite ways of giving a person parnasa. If someone is working harder than he needs to earn the bare minimum and is making a lot of money, he may feel that it is his extra hard work that is paying off. Chovot HaLevavot compares him to a man who was walking in the desert and overcome by thirst. He found a pit with murky water and drank as much as he could. When he traveled a bit further afterward, he found a spring with pure sweet water. When he discovered that spring, he felt bad that he already filled himself to capacity with the disgusting water. If he would have just waited a little longer, he would have been able to enjoy the clear water instead. It is the same with the man who works overtime and earns a lot of money. If he would have worked less and put in more time for Torah, Mitzvot and his family instead, he still would have earned the same amount. Only it would have come without all of that additional effort. Our hishtadlut is not what produces our money. We do hishtadlut because Hashem tells us to. And when we fulfill His requirement, then He will give us exactly what we're meant to have.