Whether I support or oppose the display depends on whether equivalent statements from other faiths are also displayed. Not necessarily all other faiths, as few buildings are large enough, but a representative sample, at least. (Don't ask me what constitutes a representative sample. I haven't had my coffee yet.)

How many can I name? Well, in no order...

Thou shalt not kill.
Thou shalt not steal.
Thou shalt not covet thy neighbor's wife.
Thou shall remember the Sabbath and keep it holy.
Thou shall have no other gods before Me.

I can't remember if adultery is seperate from "covet thy neighbor's wife" and if graven images and "name of the Lord in vain" are part of "no other gods", seperate commandments, or elsewhere in the Bible.

If one really wanted to list basic Christian laws, it would be "Love the Lord your God with all your heart, soul, strength, and mind" and "Love thy neighbor as yourself".