And Moses indeed was faithful in all his house as a household servant for a witness of the things that would be spoken afterwards, but Christ, as a Son over His house, whose house we are, if indeed we hold fast the firm confidence and the boasting of hope until the end (Hebrews 3:5–6).
The concept of a dispensation is evident here with Moses in his house. He served as a household servant, placed over the house governed by Law (Hebrews 3:2). A dispensation—or, more commonly termed today, an administration—is a period of time during which God reveals something to man through the establishment of a household under a designated steward. This steward bears the responsibility of ensuring that the household is instructed in the manner prescribed by the Master for how they are to conduct their lives. Moses was faithful to deliver and implement the Law to Israel.
In comparison to how Moses was faithful in his house, Christ was faithful over His house, for He is the builder of the house (Hebrews 3:3). Those who hold fast to the firm confidence and the boasting of hope until it is brought to its intended end are of the household of Christ, not belonging to the house of Moses. The rules of Christ’s household are grace, not Law. In Christ’s household, we have all things pertaining to life and godliness (2 Peter 1:3–4). Those who are part of this household live out from faith (Romans 1:17), for Law is not out from faith (Galatians 3:12). Christ’s household began on the Day of Pentecost, when the promised Holy Spirit came, and it will continue until the assembly belonging to God is called to meet Him in the air.