Vayehi Erev Vayehi Boker
Kabbalat Shabbat services order of the ending prayers - Amidah, Vayechulu, Magen Avot, Kiddush, Aleinu, Mourners Kaddish. In some prayer books the following verse is inserted before Vayechulu - Vayehi erev vayehi boker yom hashishi (and it was evening and it was morning, the sixth day). Why is this verse inserted in some prayer books? And why not in all prayer books? Someone told me that it may have something to do with saying the prayers in synagogue vs at home.