If the benefits of this agreement depended on the law, then they would no longer depend on the promise. But God gave them to Abraham as a free gift through a promise.
As Jesus started on his way, a man ran up to him and got down on his knees in front of him. “Good teacher,” he asked, “what must I do to receive eternal life?”
One of the teachers of the law had been listening to the discussion and he realized that Jesus had given a good answer. So he came up and asked him, “Which is the most important of all the commandments?”
They were trying to trap Jesus with that question, so they’d have a reason to bring charges against him. But Jesus bent down and started to write on the ground with his finger.