The writer to the Hebrews talks about the arrangement of the tabernacle of the Old Testament. The tabernacle was the portable sanctuary used by the Israelites from the time of their wandering in the wilderness after the Exodus from Egypt to the building of the temple in Jerusalem (see Exodus 25–27). Within the tabernacle was the ark of the covenant which included the mercy seat (Hebrews 9:3-5 NKJV).