Owner of the Key re-echoes that we are simply nothing without God. Before the world began, God has everything planned out for His children. The manifestation of his entire plan can only come to fruition on the recognition of his supremacy over all. If He is the master of your life, He will make things work out in favour of His will for you because He is the master in control.
Owner of the key is indeed a song that will strengthen your confidence in God and help you live life knowing God is in charge and in control of your life watching to ensure you are kept from shame.