The enemy comes in and becomes "one of us" unless we are discerning. For example, the Homosexual activists have been very clever in appearing as normal families while hiding the diabolical acts they engage in on a regular basis. They have infiltrated some churches becoming leaders and even clergy. God calls it an abomination and so should we. The message was told ten times over "they are coming to kill you while you sleep, when you least expect it."
Really, Dallas? I'm a Deity, not a murderer.