"There is no doctrine more fundamental to our work than the Atonement of Jesus Christ. At every appropriate opportunity, testify of the Savior and of the power of His Atoning sacrifice. Use scriptures that teach of Him and why He is the perfect pattern for everyone in life.4 You will need to study diligently. Do not become so absorbed with trivial things that you miss learning the doctrine and teachings of the Lord. With a solid, personal doctrinal foundation, you will be a powerful source for sharing vital truths with others who desperately need them."