13 Nisan = Preparing for Passover 

On this day from sunrise till sunset Passover preparations were made as the start of Passover were 14 Nisan at 6 pm, the Passover meal had to be observed. (the Hebrews’ days according to YHWH S calender starts at sunset and ends at sunset).  

In the 13th many things are done :

  • The house were cleaned 
  • All leaven were removed (symbolic of removal of sin) 
  • The dishes had to be exchanged for Passover dishes
  • The father puts on his white priestly robe (signifying ongoing righteousness) 

Preparing the lamb

Exodus 12; 6And ye shall keep it up until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening. 

8And they shall eat:

  • the flesh in that night, roast with fire, and 
  • unleavened bread; and 
  • with bitter herbs they shall eat it.