The Pesach (Passover) is one of the most solemn of God’s appointed times (a.k.a., feasts or festivals), it is the only feast inaugurated when God Himself shed blood. The Pesach is also the only feast with a "second chance," which seems apropos for a God who is all about giving people opportunity for repentance and second chances. God also shows, through the Cloud, that when He says "move" we are to move. When God says, "Stay put," we are to stay put.