During a Sunday service at New Hope Baptist Church in Denver in October, a visitor stood up and began shouting during the sermon. It was a few weeks before a shooter killed 26 people and wounded 20 others at a church in Sutherland Springs, Texas, but it still alarmed many in the pews that day, said Rev. Eugene Downing Jr., the pastor at New Hope. “That created some uncertainties for members of our congregation,” Downing said. “Some anxiety.” But the worshipers also were prepared, trained in a protocol developed after nine people were killed during a Bible study meeting at Emanuel African Methodist Episcopal Church in Charleston, S.C., in 2015. “We are at a day and age where security, unfortunately, has to be a part of the ministry,” Downing said. The Texas tragedy understandably increased anxiety for worshipers across the nation. It also drew the attention of law enforcement officials. Houses of worship across Colorado are exploring heightened security, including installing better lighting and surveillance cameras, practicing emergency-response drills, and designating panic rooms to keep their buildings, and themselves, safe. On Nov. 6, the day after the Sunday morning massacre in Texas, Aurora police posted “Safety Tips for Communities of Faith” — a six-step instructional sheet on how to stay safe — on Twitter and Facebook. A week later, the department provided “special tactics training” at Highpoint church. “We put that out,” Aurora police spokesman Officer Kenneth Forrest said. “We’ve been working with churches for years on how to keep their congregations safe and have a plan, hopefully, mitigating the effects if there is an active shooter.” .@AuroraPD & @AuroraFireDpt conducting important joint special tactics training. Thank you to HighPoint Church near Southlands for allowing us to use your facility. A successful day in helping APD/AFD maximize its operational readiness. pic.twitter.com/2KeIUSy37O — Chief Nick Metz (@APDChiefMetz) November 14, 2017 Colorado has its own painful legacy of gun violence in public places. A disgruntled parishioner killed four people at New Life Church in Colorado Springs in 2007. A doctoral student at the University of