What does Hebrews 3:2 mean?

The Jewish people revere Moses above all others, since he was the one who led the people out of Egypt and brought them God's law. This passage is meant to show how Jesus Christ is superior to Moses. This begins by pointing out that, just as Moses was faithful to God, so too is Jesus faithful to the Father. Moses was faithful to God's house—a reference to the tabernacle—because he followed the exact instructions given to him by God. However, as a person, Jesus is far superior to Moses.

Later verses will explain that Moses functioned in the "house of God" as a faithful servant. This is honorable, and admirable, but Jesus functions as the "son" of the household and the builder of the house! Moses is a created servant; Jesus is the Creator and Master (Hebrews 3:3, 6).

This passage comes with two important contexts. The first is that, if we ought to follow the example of Moses, we ought even more to follow the example of Jesus. Second, as later verses will explain, faithfulness is a requirement for victory. Those who fail to emulate faithfulness—meaning obedience, trust, and belief in God—will forfeit their inheritance. This does not result in damnation, but it does result in discipline.