I can understand a church’s desire to protect its’ people. We’ve seen far too many massacres at churches (or anywhere, for that matter). But, despite that reality, threatening more violence in reaction to violence doesn’t even remotely approach having anything to do with the teachings of the faith.
When relating the story of Jesus’ arrest in the Garden of Gethsemene, Matthew 26:52 tells us that when a disciple sought to defend Jesus from those arresting him:
…Jesus said to him, ‘Put your sword back into its place; for all who take the sword will perish by the sword.
First is Judas, The Betrayer, who sells Jesus out to the Chief Priests for 30 pieces of silver. And then there are Peter and the two sons of Zebedee, who fail to stay awake while Jesus is praying; and then all the disciples desert him and flee. Caiaphas and the Council stage a trial, using false witnesses and evidence to condemn him to death. And, Peter betrays Jesus again – three more times, before the Cock crows; just as Jesus foretold.
And then, Pilate ignores the plea of his wife, betraying her. And, the Chief Priests betray Jesus again, inciting the crowd to ask for the release of Barabbas. – Which means all the people (and our pamphlet reading makes it clear we are among those people) betrayed Jesus, too, Matthew has us saying “let his Blood be upon us and on our children…!” They knew what they were doing. Even the bandits hanging on crosses on either side of Jesus taunted him.
And finally, Jesus calls out “Eli Eli Lema sabachthani!” meaning “My God My God, why have you betrayed me!?”
In the end, everyone betrays Jesus the Son of God, even God.
The Here and the Hereafter 