Faith brings forth and precedes courage, obedience as well as faithfulness. All these three virtues and more are hinged on faith if they will ever be real. Courage without faith will only amount to bold face. With the absence or lack of faith also, it is altogether not possible to do what pleases God (that is to be faithful and obedient). Hebrews 11:6 puts it this way: “But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.” To be faithful even means to be full of faith – i.e., faith-full. In fact, while faith means you trust and count on God, faithfulness means God can count on you. It’s a virtue that commends you to God and renders you trustworthy.
Furthermore, obedience works by faith as well. Else, it would seem impossible to do what God commands and make you falsely regard God as a tyrant. He has never been one and He can’t ever be. He’s a just Judge. He is a righteous God. It will only be impossible to do as He commands once there is doubt and unbelief in us. Little wonder why I hear a lot of people say it’s not possible to live without sin when indeed we are particularly commanded to. They say it’s not possible for humans to “walk without the head shaking”. Thus they render useless and meaningless Jesus’ coming to this world to lay down His life and “save His people from [not in] their sins” (Mat. 1:21 emphasis and parenthesis mine). Faith in us towards God is the essence of obedience to Him. This is exactly why Hebrews chapter 11 is about faith, courage, obedience and faithfulness.