No profanity, Scripture on inmate mail

I am an inmate in the Stanislaus County Jail. For the last three years I have been including short biblical Scriptures or Christian phrases on the envelopes of all my outgoing mail. It has been neatly placed in the lower left-hand corner on the front. Now, all of a sudden, I am told I can no longer do so. That it is against the rules. I am confused! You can write "Legal Mail, Attorney Client Confidential," but not "Jesus Is Lord"?

I understand not wanting gang-related sayings or vulgar words. It is downright scary that the Sheriff's Department considers Scripture to be in the same category as gang sayings, profanity or vulgar quotes.

JEFFREY R. PRICE

Modesto