“Then Moses said to Aaron, “This is what the LORD has said: ‘Among those who are near me I will be sanctified, and before all the people I will be glorified.‘” And Aaron held his peace.”
Leviticus 10:3.
Nadab and Abihu, Aaron’s two eldest sons, had just been ordained as priests. Even though they were given the authority to offer incense, their actions were condemned because they presented “strange fire that the Lord had not commanded” (Lev. 10:1). This event marks a significant moment that demonstrates how much God despises the sins that corrupt God’s holiness, especially among priests or religious leaders.
Their offense may seem small—using “strange fire” to burn incense—and could even be considered an unintentional mistake. Nadab and Abihu probably did not do it out of rebellion. They were simply careless and fell into error.
What is “strange fire”? Though the term is not explicitly defined, commentators have offered several possibilities. However, what is clear is that this “strange fire” represented disobedience to God’s commands. Nadab and Abihu conducted their worship in a way that did not align with God’s instructions. As a result, fire from the Lord’s presence consumed them in judgment (Lev. 10:2). This tragic moment served as a reminder that holiness is not optional. We cannot take it lightly.
After the event, Moses conveyed God’s words to Aaron, “I will be sanctified among those who are near me, and before all the people I will be glorified” (Lev. 10:3). Aaron remained silent, accepting that the death of his sons was a just judgment from God. His silence teaches us the importance of submitting to God’s sovereignty, even when we do not fully understand His plans. John Calvin said, “Only when we reflect on how holy God’s worship is can we understand why such a severe punishment should not offend us.”
Holiness is a major theme in the book of Leviticus. As priests, Nadab and Abihu had a high responsibility because they were “near” to God in their duties of offering sacrifices and teaching holiness to the people. As teachers of holiness, they were expected to maintain their own holiness.
The closer a person is to God, the greater the responsibility to live in holiness. Many examples in the Old Testament show that even minor violations by those who should have known better resulted in severe consequences. Moses is an example.
John Calvin emphasized that the severe punishment of Nadab and Abihu was necessary to uphold the sanctity of worship during the establishment of the priesthood. If his sin had been ignored, the priests could have become careless, and the entire nation would have followed their example in disregarding God’s holiness.
Aaron remained silent, witnessing how his sons’ lack of holiness resulted in their deaths. However, through their death, the people of God were reminded of the seriousness of holiness. Just as Aaron’s sons died because of their own sins, the Son of God died because of ours. This sacrifice was a high price to pay, and it warns us not to treat holiness lightly after we have received such a great grace.
Like Nadab and Abihu, we often fail to take sin seriously. We play around with it, defend ourselves when confronted, and think that minor sins do not matter because we are already justified in Christ. It is as if we have a “trump card” for every act of unholiness. We have grown used to treating sin as something trivial. Nevertheless, we forget that Jesus was crucified because of our sins. Treating sin lightly means we are trivializing the tremendous sacrifice Christ made on the cross.
The wage of sin is death (Rom. 6:23), and even the smallest sin can lead to destruction. Ignoring minor sins can cause major falls. Those falls not only damage our relationship with God but also hurt those around us. When one of us falls into sin, it causes our brothers and sisters in Christ to grieve and feel hurt. The impact of sin never falls only on the one who commits it; the implications of sin are always communal.
The case of Achan in Joshua 7 shows that the sin of one person can affect the entire community of Israel. As a result, there was defeat in battle, and the wrath of God fell upon the community. Paul’s teachings in 1 Corinthians 5:6 and 12:26-27 emphasize how sin impacts the church community, likening it to leaven spreading through the dough. They highlight individual transgressions’ communal and corporate consequences. Worse, we could become stumbling blocks to others who are seeking God.
Christian leaders serve in a dynamic and rapidly changing environment where they are entrusted with the spiritual well-being of many. They minister to communities, engage with youth, and guide others through teaching, chapels, and seminars. It is a powerful movement, and Satan is not pleased. Fiery darts will be aimed at us as leaders. The enemy is waiting for us to fall. One sin left unchecked can have devastating effects on the body of Christ. We must stay vigilant and live above reproach. Do not give Satan even the tiniest opening.
What should we do now?
- Take sin seriously. The Bible makes it clear that God does. If Jesus took sin seriously enough to give His life for it, then we, too, must take it seriously
- Repent immediately. When we fall into sin, we should not delay turning back to God. Postponing repentance only increases guilt and distance in our relationship with Him.
- Keep believing in Jesus. Only He can cleanse us from sin and help us live in holiness. We must continually trust in His saving work and rely on His strength to walk in victory.
- Keep moving forward in our sanctification, which is a lifelong process. Each day is an opportunity to say no to sin and yes to Christ. The Christian life starts with God’s amazing grace and continues like an amazing race. We are called to run this race toward holiness—yet not by our own strength, but by fixing our eyes of faith on Jesus. As Hebrews 12:1–2 reminds us, we are to “lay aside every weight” and “run with endurance,” looking to Jesus, who is both the Author and Finisher of our faith.
A Puritan once advised us to say, “Goodbye, sin.” It does not mean that we will be sinless, but that we must grow in holiness, progressively rejecting the power of sin over our lives. We know that farewell to sin is not easy; sometimes we stumble and fall. However, we must walk in holiness one step at a time until the day comes when we will say a final and permanent “Goodbye, sin” in the presence of His glory, because holiness is not optional.
