From what I see, the biggest problem with texting is that it’s addictive. It’s not even the texting itself. Those who text, are constantly checking their cells to see if they received a message.
http://www.theyeshivaworld.com/coffeeroom/topic/texting-on-shabbos-could-be-worse-than-murder
This is a question that was sent to someone who sends out halacha emails:
Question:
I wanted to ask you about the new (and exciting for many, nebach, unfortunately)
trend of “Half Shabbos” whereas people keep full Shabbos but are texting throughout
the day (hence “half Shabbos”). What’s the halacha here?
Answer:
There is no such thing as half Shabbos. Keeping Shabbos 99% is desecrating it 100%.
Using any electronic devices on Shabbos is strictly prohibited, possibly even D’Oraysa
as using electricity (where internal circuits are connected and completed ) involves
melachos of Aish, Boneh, Soser and Molid to name a few. (See Chazon Ish Orach Chaim
Siman 50:9)
Again, there is no valid halachic permissibilty to text or otherwise use a cell
phone on Shabbos Chas V’Shalom (besides in life threatening emergencies), and all
who do so will ultimately have to deal with the heavenly consequences. May Hashem
have mercy on His holy nation and spare them from desecrating the holy Shabbos and
His holy name.