Hebrews 3:1b consider the Apostle and High Priest of our confession, Christ Jesus, [2] who was faithful to Him who appointed Him, as Moses was faithful in all His house.
The author commends us to consider (reflect on or contemplate) our Apostle and High Priest, Jesus. In Hebrews 2:17 Jesus was previously referred to as High Priest. We know from the Old Testament that the high priest was charged with the responsibility of atoning for the sins of Israel on the Day of Atonement. That day, and that day alone, the high priest would go behind the veil of the Holiest of All to the Ark of the Covenant with blood, shed on behalf of his people’s sins, him included.