God had told him, “Through Isaac descendants will carry on your name,”

And no one assumes this honor on his own initiative, but only when called to it by God, as in fact Aaron was.

For indeed he who makes holy and those being made holy all have the same origin, and so he is not ashamed to call them brothers and sisters,

But exhort one another each day, as long as it is called “Today,” that none of you may become hardened by sin’s deception.

By faith Abraham obeyed when he was called to go out to a place he would later receive as an inheritance, and he went out without understanding where he was going.

And so he is the mediator of a new covenant, so that those who are called may receive the eternal inheritance he has promised, since he died to set them free from the violations committed under the first covenant.