Deuteronomy 26:16 (NIV) The LORD your God commands you this day to follow these decrees and laws; carefully observe them with all your heart and with all your soul.
John 14:23 (NIV) Jesus replied, "If anyone loves me, he will obey my teaching. My Father will love him, and we will come to him and make our home with him.
Matthew 7:21 (NIV) Not everyone who says to me, "Lord, Lord," will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven.
The Bible recognizes no faith that does not lead to obedience, nor does it recognize any obedience that does not spring from faith. The two are at opposite sides of the same coin.—A.W. Tozer.
Leadership, Vol. 12, no. 4. Elesha Hodge, comp., Today's Best Illustrations – Volumes 1-4, (Carol Stream, IL: Christianity Today, 1997), WORDsearch CROSS e-book, Under: "OBEDIENCE".