In 2 Nephi 2:27, Lehi used an ancient Israelite concept known as the doctrine of the “two ways” to explain the principle of agency to his sons. This doctrine states that there are only two ways to live: the way of life, and the way of death. Lehi’s teachings on agency demonstrate that moral agency—the ability all people have to choose between these two ways and act for themselves—is essential to Heavenly Father’s plan. Humanity’s eternal progression depends on which of the two ways people choose.