'First Covenant' in the Bible

For if the first covenant had been faultless, there could have been no room for a second one.

So indeed the first covenant had its regulations for worship and its earthly sanctuary.

And this is why He is the Mediator of a new covenant, in order that, after He had suffered death for securing redemption from the offenses committed under the first covenant, those who had been invited to share it might obtain the eternal inheritance promised them.

So not even the first covenant was ratified without the use of blood.