A community would not bring the Paschal lamb on pesach sheni. The reason being the spiritual impact of a group desiring to bring it will cause on a spiritual level that which whatever occurred if they would have in fact brought it

Those that were impure waited to the last day to ask Moshe if they could bring the Paschal lamb. Because for the previous six days they fell under the Rubik's cube of someone who was involved in a commandment is exempt from all other commandments

The Tabernacle had a twofold purpose. To bring sacrifices and a meeting place between Hashem and Moshe. Aaron was upset why he and his tribe were not involved in the Tabernacles induction at least for the aspect where it was a meeting place between Hashem and Moshe

Aaron lit the menorah and not Moshe because Aaron's role was to elevate the Jewish people and imbue them with the spirit of the Torah

God's voice stopped at the entrance of the tent of meeting to allow the Jewish people the ability of free choice.

We learn from the laws of a sotah that we must learn chasidus to purify ourselves

We are obligated to eat on this festival to impress upon us that God's spirituality penetrated the mundane and that earthly pleasures can become elevated and become holy something that could not take place prior to the giving of the Torah

The Jewish people had to be counted and it wasn't sufficient that they fall in the category of items that are counted and therefore do not become nullified. Because we wanted them to impact the physical world and that will explain as well why we only countered them from the age of 20

The Jews did not say why is Gd taking us into a desert and they are still in the desert during the second year and still they remain there. Therefore Gd said count the Jews to demonstrate his love for us

There is significance in the fourth book being called the book of Numbers to impress upon us that at times quantity will outweigh quality