Pesachim 2
The first Mishna in Massechet Pesachim (1:1, 2a) teaches us that we perform the mitzvah of bedikat chametz (checking for chametz) with a light on the night (אור) of the fourteenth of Nissan, afterwhich our Sages then provide us a range of interpretations to the word אור while drawing numerous contrasts between day and night.…
Details