Hebrews 9:6

‘Now these things having been thus prepared, the priests go in continually into the first tabernacle, accomplishing the services.’

And the things in the Holy Place having been ‘prepared’ according to God’s instructions to Moses, the priests ‘go in continually’ to fulfil their responsibilities and fulfil the many services required of them. This busy activity is in deliberate contrast with the next verse. All their efforts are expended outside the Holy of Holies. They cannot come into the direct presence of God.