John 4:6 (NKJV)
Having the right tools for the work you need to do is essential, and you need to know how to use each of the tools you have and what they are best suited for. You may have one tool that you like more than other tools, but that does not mean that this tool is always the best tool. You could have a tool that is good for several applications, but that does not mean that it is good for every application. While you may prefer one tool above another, or one tool may work in more settings than others, you still always need to have the proper tool to get the job done right.
One of the main elements of Christianity is faith. But, faith is not the only thing necessary for a successful Christian life. One of the most important, and often neglected, things that we need is wisdom. The Bible repeatedly talks about wisdom and how valuable it is. We may think that wisdom is not as important as something like faith, but faith and wisdom both have their place. Some people think that they can do whatever they want and then somehow just take a stand in faith and overcome any negative consequences that they have as a result of their actions.
We can have problems if we somehow think that faith can overrule wisdom, even if we make poor choices with things like our health or finances. But, for example, as we see in John 4:6, even Jesus got tired and He was wise enough to take the opportunity to rest. Jesus did not just try to use faith to have more physical strength. In the area of finances, David set aside gold, silver, and other materials in preparation to build the temple; he did not just expect that somehow the financial resources would be there when he needed them without any effort on his part. Make sure you use all the tools available, including wisdom, to have a successful walk with God.