Here in Texas churches are off limits for CHL's to carry. However for it to be binding the church has to have signs posted at all doors or someone standing at the doors to notify everyone that enters that it is prohibited. Needless to say most churches do not do this. I always carry when at church. A deranged man killed several people at one of the churches in Fort Worth back in the late 90's.
By faith Noah,being warned of God of things not seen as yet, moved with fear,prepared an ark to the saving of his house;by the which he condemned the world,and became heir of the righteousness which is by faith Heb.11:7