And Nadab
Nadab  (naw-dawb')
liberal; Nadab, the name of four Israelites -- Nadab.
and Abihu
'Abiyhuw'  (ab-ee-hoo')
father (i.e. worshipper) of Him (i.e. God); Abihu, a son of Aaron -- Abihu.
muwth  (mooth)
causatively, to kill
when they offered
qarab  (kaw-rab')
to approach (causatively, bring near) for whatever purpose
zuwr  (zoor)
to turn aside (especially for lodging); hence to be a foreigner, strange, profane; specifically (active participle) to commit adultery
'esh  (aysh)
fire -- burning, fiery, fire, flaming, hot.
paniym  (paw-neem')
the face (as the part that turns); used in a great variety of applications (literally and figuratively); also (with prepositional prefix) as a preposition (before, etc.)
the LORD
Yhovah  (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.