At Sundry Times and in Divers Manners

Hebrews starts with a distinction between God and the Son, and both are identified by their temple roles.  God speaks, as the unseen person behind the veil, in the Debir, which means "place of speech."  The Son is seen because he is the "image," he is the Word, and, as a Melchizedek priest, he acts in "power."  After purging our sins, the Son returns to the Debir to sit on the right hand of the Majesty.  The purging of sins may allude to the sacrifice of the Lord's goat (sheep) on the Day of Atonement, or the Shalem Feast of bread and wine, which are counterparts to each other in the counterpart ordinances.