In Hebrews 5:11-6:3 the author speaks about the difficulty of explaining Christ’s priesthood to the church. The reason it is difficult is not because of the material, which is admittedly complex, but rather that the church has become slow of hearing. The church has become like those who need milk, not solid food. In the Christian faith, there is an expectation that Christians will progress and grow in maturity. If this is not happening, something is wrong.