'Mediator' in the Bible

Why then was the law given? It was added because of transgressions until the Seed to whom the promise was made would come. The law was put into effect through angels by means of a mediator.

Now a mediator is not for just one person, but God is one.

For there is one Godand one mediator between God and humanity,Christ Jesus, Himself human,

But Jesus has now obtained a superior ministry, and to that degree He is the mediator of a better covenant, which has been legally enacted on better promises.

Therefore, He is the mediator of a new covenant, so that those who are called might receive the promise of the eternal inheritance, because a death has taken place for redemption from the transgressions committed under the first covenant.

to Jesus (mediator of a new covenant), and to the sprinkled blood, which says better things than the blood of Abel.