“This is what you are to do to consecrate them, so they may serve me as priests … So I will consecrate the tent of meeting and the altar and will consecrate Aaron and his sons to serve me as priests.” (Exod 29:1, 44)
Chapter 29 mostly describes the consecration of Aaron and his sons. The role of Aaron as high priest foreshadows the work of Jesus Christ in the New Testament. We can now appreciate the huge differences. Because of sins, atonment and purification through offerrings are required for Aaron before he can serve God and God’s people in the tabernacle. Aaron needs the blood of sacrifices. However, Jesus is sinless. He become the sacrifice and at the same time He is the High Priest Himself.
Big thanks to God that Jesus’ blood not only washes away our sins, but also consecrates us to enable us to become priests as well. Exodus 29:21 describes how blood was sprinkled on Aaron and his sons so they and their garments were consecrated. Today, because of the blood of Jesus, we have direct access to the throne of grace. We also become priests before God to serve Him and His people. What a privilege God gives us!
Moreover, once Aaron and his sons become priests, God ordered them to offer sacrifices and keep the fire on day and night (Exod 39:38-42; Lev 6:12). It tells us that no matter it is day or night, He is in the midst of us. He is always accessible for us. We can approach God and talk to him anytime. He is our God and we are His people (Exod 29:42-46). He calls “the generations to come” to witness His goodness (Exod 29:42).