It is fatal to act in the things of God without seeking the mind of God (will worship, Colossians 2:23).
Leviticus 1
1 And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon, and offered strange fire before the LORD, which he commanded them not.
2 And there went out fire from the LORD, and devoured them, and they died before the LORD.
3 Then Moses said unto Aaron, This is it that the LORD spake, saying, I will be sanctified in them that come nigh me, and before all the people I will be glorified. And Aaron held his peace.
4 And Moses called Mishael and Elzaphan, the sons of Uzziel the uncle of Aaron, and said unto them, Come near, carry your brethren from before the sanctuary out of the camp.
5 So they went near, and carried them in their coats out of the camp; as Moses had said.
6 And Moses said unto Aaron, and unto Eleazar and unto Ithamar, his sons, Uncover not your heads, neither rend your clothes; lest ye die, and lest wrath come upon all the people: but let your brethren, the whole house of Israel, bewail the burning which the LORD hath kindled.
7 And ye shall not go out from the door of the tabernacle of the congregation, lest ye die: for the anointing oil of the LORD is upon you. And they did according to the word of Moses.
8 ¶ And the LORD spake unto Aaron, saying,
9 Do not drink wine nor strong drink, thou, nor thy sons with thee, when ye go into the tabernacle of the congregation, lest ye die: it shall be a statute for ever throughout your generations:
10 And that ye may put difference between holy and unholy, and between unclean and clean;
11 And that ye may teach the children of Israel all the statutes which the LORD hath spoken unto them by the hand of Moses.
12 ¶ And Moses spake unto Aaron, and unto Eleazar and unto Ithamar, his sons that were left, Take the meat offering that remaineth of the offerings of the LORD made by fire, and eat it without leaven beside the altar: for it is most holy:
13 And ye shall eat it in the holy place, because it is thy due, and thy sons’ due, of the sacrifices of the LORD made by fire: for so I am commanded.
14 And the wave breast and heave shoulder shall ye eat in a clean place; thou, and thy sons, and thy daughters with thee: for they be thy due, and thy sons’ due, which are given out of the sacrifices of peace offerings of the children of Israel.
15 The heave shoulder and the wave breast shall they bring with the offerings made by fire of the fat, to wave it for a wave offering before the LORD; and it shall be thine, and thy sons’ with thee, by a statute for ever; as the LORD hath commanded.
16 ¶ And Moses diligently sought the goat of the sin offering, and, behold, it was burnt: and he was angry with Eleazar and Ithamar, the sons of Aaron which were left alive, saying,
17 Wherefore have ye not eaten the sin offering in the holy place, seeing it is most holy, and God hath given it you to bear the iniquity of the congregation, to make atonement for them before the LORD?
18 Behold, the blood of it was not brought in within the holy place: ye should indeed have eaten it in the holy place, as I commanded.
19 And Aaron said unto Moses, Behold, this day have they offered their sin offering and their burnt offering before the LORD; and such things have befallen me: and if I had eaten the sin offering to day, should it have been accepted in the sight of the LORD?
20 And when Moses heard that, he was content.
Leviticus 1 – J. Vernon McGee
Leviticus 10:1-11 – A Deed that Turned Joy into Grief
Take care lest you ever introduce strange fire into your worship—i.e., the fire of your own emotions, enthusiasm and excitement. Ponder those mighty words in Leviticus 10:3. We must not rush carelessly into the divine presence, though by the blood of Jesus we have been made nigh, Ephesians 2:13. —Through the Bible Day by Day
Leviticus 10:3 – Aaron held his peace.
His heart must have been rent with paroxysms of grief, as he beheld the bodies of his beloved sons on the floor of the Tabernacle, stretched out in death. He repressed the cry, choked back the sob, staunched the flowing tear, and continued to perform the holy duties with which he was charged. He was no stoic, and tears are not wrong for our dead; but his relationship to God was so overmastering as to still the expressions of nature.
He saw the wrong from God’s standpoint.—It was of great importance that the Divine regulations and enactments should be maintained, and that the ministering priests should always prefer God’s work and service above their own ideas. Aaron was able to appreciate that position, and saw the sin of which his children were guilty. They had forgotten the voice which said, Sanctify thou Me. Obedience is the foundation of reverence, honor, and service; and if it were relaxed with the priests, how for the people! How careful they should be who bear the vessels of the Lord! With what fear and trembling must they work, who work with God!
He acquiesced in the Divine dealings.—To take the yoke, and meekly bear it; to put the hand on the mouth, and bow in the dust—this is rest and peace. In this way we drink Christ’s cup and become partakers of His sufferings.
He felt that his work as priest must take precedence.—It was a solemn and awful thing to be God’s anointed priest, and the office must come first, even to the denial of the dues of nature, if that were necessary: so always with us, there must be the subordination of everything to our service and work for God. —Our Daily Homily