What does the Bible say about the priesthood in Exodus 29?

Exodus 29 provides detailed instructions from God regarding the consecration and sanctification of Aaron and his sons as priests. The passage emphasizes the necessity of specific rituals, such as the eating of the ram's flesh and bread by the priests, which signifies their role in atonement and holiness. This priestly lineage is crucial because only the descendants of Aaron could serve as high priests, maintaining the sanctity of the priestly office. Furthermore, their consecration included a seven-day ritual, symbolizing both their preparation to serve God and foreshadowing Christ's perfect priesthood.