Altar See also Idolatry; Offering; Sacrifice; Worship; BDÂ Altar Lehi1 builds altar of stones, 1Â Ne. 2:7. people gather in sanctuaries to worship God before altar, Alma 15:17. sons of Mosiah2 bring many before altar of God, Alma 17:4. John the Revelator saw innocent blood of martyrs under altar, D&C 135:7 (Rev. 6:9). description of altar of idolatrous priests, Abr. 1:13. altar built by Abraham, Abr. 2:17, 20.