This is what the Lord says: Be careful not to carry a load on the Sabbath day or bring it through the gates of Jerusalem.
Let no man leave (go out) his place on the seventh day.
In many communities where people live biblically, they "wire" their neighborhood. We're not talking about the Internet. The Hebrew word is "eruv" which means to construct a symbolic border. Thin wire is used to connect existing telephone poles and fences where there are gaps.
By enclosing a large area covering many miles, a ritual community home is formed. The bible is interpreted as meaning it's OK to carry and travel on the Sabbath if you're within your home.
The eruv gives the devout follower freedom to go to a house of worship, carry ritual items, push a buggy and other activities that would be otherwise forbidden.