Similarities between laver and altar of incense: had to offer up incense that he die not Lev 16:13, like wash that he die not before entering the Holy Place.

What is strange fire? Something God hasn't asked for that therefore is not pure? So the incense God desires is not our works, but Christ's work in us, and if there's any 'self' in it we don't have Pentecost we have Nadab and Abihu?

Forty days and forty nights–the time for purification:

the flood: earth being purified

Elijah? Purified

Forty years in the wilderness: Purified

Moses fasted on the mountain: purification?

Spying the land for forty days?

Forty years, a year for a day of spying for purification–until that whole generation was consumed.

A fast 40years in the wilderness after coming through the red sea, so that they'd know that man does not live by bread alone but by every word of God.

Matt 9:14 Then they will fast–when Jesus is taken from them.