Members of the church may wear a ring with the Choose the Right shield on a daily basis, to remind them to be righteous. Other symbols in Mormonism include the tree of life (also representing the love of God and eternal life, 1 Nephi 11:8–22), the iron rod (the word of God, 1 Nephi 11:25), the tame and wild olive trees (the House of Israel, Book of Mormon Jacob 5), a tree seed (the word of God planted in one's heart, Alma 32:28), the sword of the Spirit and the shield of faith (Ephesians 6:16–17), and the many symbols of Christ and his mission as the Savior of mankind (for example, Isaiah 53:7, 55:1, John 6:35). Wheat grain on the stem is a symbol traditionally used by the women's Relief Society, as a historic reminder of their efforts to foster self-sufficiency.