Numbers 16:21 in the King James Version (KJV) of the Bible reads: "Separate yourselves from among this congregation, that I may consume them in a moment." This verse is part of the story of Korah's rebellion against Moses and Aaron, which is found in the book of Numbers, chapter 16.

To understand the full meaning and context of this verse, we must first look at the events leading up to it. In Numbers 16, a man named Korah, along with Dathan, Abiram, and 250 other men, rebel against the leadership of Moses and Aaron. They question the authority of Moses and Aaron, claiming that all the congregation is holy and that Moses and Aaron were exalting themselves above the assembly of the Lord. This rebellion was not just a challenge to the leadership of Moses and Aaron, but ultimately a challenge to God's chosen leaders and, by extension, God himself.

In response to this rebellion, Moses instructs the rebels to take censers and burn incense before the Lord, and then God will reveal who is holy and whom He has chosen to lead his people. However, before this can happen, Moses speaks the words found in Numbers 16:21, "Separate yourselves from among this congregation, that I may consume them in a moment." This is a powerful and sobering declaration from God, signaling his intention to bring judgment on those who have rebelled against his appointed leaders.

The theme of rebellion, authority, and judgment is central to this passage. The rebellion of Korah and the others is not just a challenge to the leadership of Moses and Aaron; it is ultimately a challenge to God's authority and sovereignty. Throughout the Bible, we see the importance of respecting and honoring God-ordained authority, as it reflects our willingness to submit to God's plan and purpose. Rebellion against God-ordained authority is seen as a serious offense, with severe consequences.

The context of this verse is also important to consider. The Israelites had witnessed numerous displays of God's power and provision as they journeyed through the wilderness. Yet despite these manifestations of God's presence and guidance, there was still a tendency for some to question the leadership of Moses and Aaron. This passage serves as a reminder of the importance of trusting in God's appointed leaders and the consequences of rebelling against them.

Symbolically, the act of offering incense and the subsequent judgment by God serve as a powerful image of God's holiness and righteousness. The burning of incense was an act of worship and signifies a desire to draw near to God. However, in the case of Korah and his followers, their actions were motivated by rebellion and a desire for power. This misuse of worship was met with swift and decisive judgment from God, highlighting the importance of approaching God with reverence and humility.

In conclusion, Numbers 16:21 in the KJV carries a powerful message about the consequences of rebellion against God-ordained authority. The theme of authority, rebellion, and judgment are central to this verse, reminding us of the importance of trusting in God's appointed leaders and submitting to His authority. It also serves as a sobering reminder of the need for reverence and humility in our approach to God. This passage continues to be relevant today as it challenges us to examine our attitudes towards authority and our willingness to submit to God's plan and purpose.