וּבְב֨וֹא עַם־הָאָ֜רֶץ לִפְנֵ֣י יְהוָה֮ בַּמּֽוֹעֲדִים֒ הַבָּ֡א דֶּרֶךְ־שַׁ֨עַר צָפ֜וֹן לְהִֽשְׁתַּחֲוֺ֗ת יֵצֵא֙ דֶּרֶךְ־שַׁ֣עַר נֶ֔גֶב וְהַבָּא֙ דֶּרֶךְ־שַׁ֣עַר נֶ֔גֶב יֵצֵ֖א דֶּרֶךְ־שַׁ֣עַר צָפ֑וֹנָה לֹ֣א יָשׁ֗וּב דֶּ֤רֶךְ הַשַּׁ֙עַר֙ אֲשֶׁר־בָּ֣א ב֔וֹ כִּ֥י נִכְח֖וֹ יצאו [יֵצֵֽא׃]
在各節期，國中的百姓來到永恆者面前的時候，從北門進來下拜的，要從南門出去；從南門進來的，要從北門出去。他不可從進來的那門回去，而要直往前出去。
Mishneh Torah, Prayer and the Priestly Blessing
One who entered a synagogue to pray or read Scripture may leave at the opposite door to that by which he entered, in order to take a short cut. A person may go into a synagogue with his staff, shoes, moneybelt and with dust on his feet. If he has need to do so, he may expectorate in the synagogue.