(Phoenix-AP) -- The president of the Southern Baptist Convention says members should denounce sinful behavior and proclaim Christianity as the true religion, ignoring critics who consider their faith bigoted. The Reverend Jack Graham told Baptists meeting in Phoenix that they should "penetrate the darkness of our culture" with Jesus's teachings. He said people offended by those teachings make Baptists "the national scapegoat" -- but he added, "we will not retreat or run from the battle." Graham, who pastors the 21-thousand-member Prestonwood Baptist Church in suburban Dallas, said these are "deadly times," with terrorism and new technologies like cloning threatening humanity. Earlier Tuesday, President Bush addressed the Baptists by videotape, saying he agrees with them "that marriage and family are sacred institutions."