Get your head and spirit wrapped around this and perhaps your behavior will align properly.

Hebrews 3:6
"Christ is faithful as the Son over God’s house. And we are his house, if indeed we hold firmly to our confidence and the hope in which we glory."

The sanctuary is the building that believers in Christ meet in on Sundays and any additional day deemed appropriate for corporate worship, prayer and service. The physical body of the individual believer in Christ is God's House. 

Our confidence and hope in which we glory is that firstly, right now, we are seated together with Him in heavenly places and can call on the power in His Name for the pulling down of strongholds in our lives. Secondly, when Christ returns for His believers (Rapture), every "house" or body will be perfected or glorified as well as the corporate Church.

This notification that we are God's House; that we carry His presence everywhere we go; that we represent His Kingdom as He sits enthroned upon our mind and heart - should radically influence our behavior and attitude toward everyone, especially the unbelievers. Plus the tight grasp on our sure footing in Christ and "the hope in which we glory" should spur us to action as we realize we are His House, His Mobile Home.