The innermost room
When God gave Moses instructions for the tabernacle, he told him to make a curtain, or veil, separating the Holy Place from the Most Holy Place. Behind that veil stood the ark of the covenant, a sacred chest connected with God's covenant with Israel. Its gold cover was called the mercy seat, the place associated with God's presence among his people (Exodus 26:33-34).
This was not a room people could casually visit. The Holy of Holies showed both that God had chosen to dwell with Israel and that his holiness could not be treated lightly. Sin creates a real barrier between people and a holy God.
And thou shalt hang up the veil under the taches, that thou mayest bring in thither within the veil the ark of the testimony: and the veil shall divide unto you between the holy place and the most holy.
Why the high priest entered only once a year
On the Day of Atonement, the high priest entered the Holy of Holies on behalf of the nation. He brought the blood of a sacrifice and followed God's instructions carefully. Leviticus makes clear that even Aaron, Israel's first high priest, could not enter whenever he wished (Leviticus 16:2; Leviticus 16:14).
Hebrews explains that this yearly entry was a picture of limited access. The priest entered alone, and the sacrifices dealt with sin in a temporary, repeated way. It pointed beyond itself to a fuller and lasting way of coming near to God (Hebrews 9:7).
But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:
The Holy of Holies in the temple
After Israel settled in the land, Solomon built the temple in Jerusalem. It also had an inner sanctuary, described as the oracle, where the ark was placed (1 Kings 6:19). Like the tabernacle before it, the temple's design taught Israel that worship was a gift from God, not something people could approach on their own terms.
The room itself was not magical. Its purpose was to direct attention to the God who made heaven and earth, yet chose to make his covenant presence known among his people. The physical space was a sign of a deeper spiritual reality.
What it means for Christians
The New Testament connects the Holy of Holies with Jesus' death. When Jesus died, the veil of the temple was torn, a striking sign that something had changed (Matthew 27:50-51). Hebrews says that Jesus has opened a new way into God's presence through his sacrifice (Hebrews 10:19-20).
So Christians do not need a human high priest to enter a sacred room on their behalf. Through Christ, they can come to God with confidence, repentance, and trust. The Holy of Holies still reminds us that God is truly holy, but it also points to his mercy and his desire to bring people near.
Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus,