Numbers 18:7 (KJV) says, "Therefore thou and thy sons with thee shall keep your priest's office for every thing of the altar, and within the vail; and ye shall serve: I have given your priest's office unto you as a service of gift: and the stranger that cometh nigh shall be put to death."

In this verse, we encounter a profound moment in biblical history where God delineates the responsibilities of the priesthood to Aaron and his sons. The context of this verse is essential for understanding both the sacredness and the seriousness of the calling that God places upon those who are set apart for His service. Here we see God's divine order in how things are to be conducted in the worship of Him, and how the role of the priest is not merely a position but a profound and serious calling.

To begin with, it’s crucial to recognize that the priesthood under the Old Covenant was not just an occupation but a divinely appointed ministry. God emphasizes that it is His gift to Aaron and his sons; it is a role filled with honor, yet it is also a heavy responsibility. As we contemplate our individual callings in the Kingdom of God, we should understand that, similar to the priests of old, we are called to serve faithfully within our spheres of influence, upholding our duties with reverence and joy.

When God tells Aaron that he and his sons shall keep their priest's office for everything of the altar, it speaks to the sacred nature of their task. The altar was a place where sacrifices were made to God, symbolizing the atonement of sins and communion with the Creator. Today, as believers in Christ, we often overlook the weight of our priesthood. The New Testament tells us that we are a royal priesthood (1 Peter 2:9), called to present our bodies as living sacrifices (Romans 12:1). This act of offering ourselves is, like the priests of Israel, a serious duty that demands our utmost dedication and holiness.

We must also note the stark warning that God issues concerning "the stranger that cometh nigh shall be put to death." This statement might seem harsh by today's standards, but it demonstrates the sanctity of the priestly office and the need for purity in worship. In God’s divine law, approaching the holy things without proper authorization or preparation was a matter of life and death, reflecting both God’s perfect holiness and the seriousness of transgressing His commands. It teaches us about boundaries that preserve the sacredness of God’s presence.

In understanding this scripture, we come to grapple with our own boundaries as we are called to minister in various capacities. As we nurture our priestly identities, we must actively maintain our spiritual lives, guarding against influences that could taint our service. This vigilance is essential for us to effectively intercede for others and to reflect Christ's light in a darkened world, much like the priests were called to mediate between God and Israel.

Moreover, let us consider the depth of joy embedded in this gift of priesthood. The responsibilities carried by Aaron were not burdensome in the sight of the Lord; they were opportunities for him and his sons to draw nearer to God while serving the community. There is abundant grace found in God’s calling. When we serve Him, wielding our spiritual gifts to build His kingdom, we explore the richness of relationship that our priestly roles afford us.

As we meditate on Numbers 18:7, let us embrace our identity as priests. It is vital that we enter into this God-ordained service with humility, dedication, and reverent awe. We are not just doing a task; we are participating in the divine narrative of redemption. Let us keep our hearts aligned with God’s desire, serving with love, holding carefully the sacred gift of our priesthood, and recognizing the weight of the responsibilities we bear as we bring the heart of our worship before Him.