'First' in the Bible

how will we escape if we neglect so great a salvation -- which at the first having been spoken through the Lord, was confirmed to us by those who heard;

For although by this time you should be teachers, you again need to have someone teach you the rudiments of the first principles of the oracles of God. You have come to need milk, and not solid food.

Therefore leaving the teaching of the first principles of Christ, let us press on to perfection -- not laying again a foundation of repentance from dead works, of faith toward God,

to whom also Abraham divided a tenth part of all (being first, by interpretation, king of righteousness, and then also king of Salem, which is king of peace;

who doesn't need, like those high priests, to offer up sacrifices daily, first for his own sins, and then for the sins of the people. For he did this once for all, when he offered up himself.

For if that first covenant had been faultless, then no place would have been sought for a second.

In that he says, "A new covenant," he has made the first old. But that which is becoming old and grows aged is near to vanishing away.

Now indeed even the first covenant had ordinances of divine service, and an earthly sanctuary.

For a tabernacle was prepared. In the first part were the lampstand, the table, and the show bread; which is called the Holy Place.

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

The Holy Spirit is indicating this, that the way into the Holy Place wasn't yet revealed while the first tabernacle was still standing;

For this reason he is the mediator of a new covenant, since a death has occurred for the redemption of the transgressions that were under the first covenant, that those who have been called may receive the promise of the eternal inheritance.

Therefore even the first covenant has not been dedicated without blood.

then he has said, "Behold, I have come to do your will." He takes away the first, that he may establish the second,