- Question: Why does a condition work to not accept upon yourself Shabbos if you light candles early but if you daven maariv early a condition does not work?
- The Mishna Berura (263:11:50) says that even if the congregation did not daven maariv yet, if an individual davened maariv for Shabbos, while still day out, he has accepted upon himself Shabbos and is forbidden to do Melacha, even if he says he did not want to accept Shabbos upon himself yet. And though by candle lighting some say a condition does work, as seen in si’if 10, but davening shemone esray is different since you mentioned the sanctity of Shabbos.
- The bracha you make on lighting Shabbos candles is “Blessed are you…who commanded us to light the candle for Shabbos.”
- The blessing during the Shemone Esray of Shabbos is “Blessed are you…for sanctifying the Shabbos.”
Answer: . In davening you are proclaiming that Shabbos should start by saying that Shabbos is holy and not mundane whereas lighting candles is just a candle which just happens to be used for Shabbos sake but that can be when Shabbos starts at sundown, the blessing doesn’t have any innuendo triggering Shabbos to start.