Abstract: Nephi saw in vision that in the latter-days “the saints of the church of the Lamb” and “covenant people of the Lord” who, though scattered across the earth, “were armed with righteousness and with the power of God in great glory” (1 Nephi 14:14). This study explores how “armed with righteousness” means “clothed with righteousness” (Psalm 132:9) not merely in a martial, but also in a priestly sense (see 1 Samuel 17:5; Isaiah 59:17). This concept relates to the latter-day temple and its ordinances. When we consider the spiritual power and protection associated with being “armed” or “clothed with righteousness,” we can better appreciate the value of temple ordinances that involve clothing or investiture. These ordinances help us “put on the Lord Jesus Christ”—investing the recipients with the priestly power of Christ’s Atonement, which authorizes them to do his work, enables them to withstand temptation, and enables them to stand in the spiritual battles of mortal life.