Where is boasting then? It is excluded. By what law? Of works? No, but by the law of faith.
Faith is a spiritual law. The reference in the above verse to the word “law” means that which is established. For example there is the law of lift, which was established by God and has always been in existence here on earth. Man did not invent it, so he cannot take credit for the law of lift. God created this law. Once man began to understand this law and how it works, he was able to make use of this law to our advantage.
To try and explain this law in simple terms, when an “airfoil” (wing of a plane) goes through the “air” it redirects and “forces” the air to follow a path that goes downward. This change in direction causes a downward force applied to the air. This results in the air causing an upward force on the airfoil (wing), and that creates lift. It works whenever these elements are applied. So it is with faith. Faith is a spiritual law and therefore it always works. It is not something we take credit for because we did not create it, God did. Our part, like the law of lift, is to figure out what it takes to see this law work.
Faith has three elements that when combined works, just like the air, airfoil, and the force created causes lift. Faith believes in the heart, not the head, faith speaks in line with that belief, and then faith acts upon that belief. When applied faith always works, for it is a spiritual law. We never boast about faith, because we did not create the law of faith, God did. Our part is to believe in the heart, which comes by hearing and hearing by the Word of God; to speak in line with that belief, and then to act upon what we are fully convinced of in our heart, turning our faith loose. When we do, just like the law of lift, we will see faith work.