Book excerpt: In today's uncertain world, storms will arise that test your faith in a loving heavenly Father. At times, the winds and waves of the world's deceptions will roll in and seek to erode your confidence in God. Without a firm foundation in the truth of God's Word, you may be tempted to go off course and accept less than God's best for you. However, when you hear Jesus' words, receive them, and put them into practice, you will construct a life the torrents cannot shake, "because it was well built" (Luke 6:48). The Purple Book will help you understand foundational truths that God wants you to hear on topics such as sin, salvation, spiritual gifts, prayer, worship, generosity, and evangelism. It will show you how the Bible is "God-breathed and is useful for teaching, rebuking, correcting and training in righteousness" (2 Timothy 3:16). It will help you understand that the faith you hold has true power to change lives and transform nations. It will give you a solid foundation the enemy cannot dismantle—and a heart shaped by knowledge of God's Word.