Satan is trying to disprove our status as children of God, as beneficiaries of the will. He says that we have no rights to heaven. We have not perfectly kept the perfect commands of God. We do not deserve to be forgiven because we don't have anything of value to offer God in order to buy our forgiveness. We have no claims to anything godly because we are ungodly.
Court drags on with witness after witness.
The promises of the will are questioned. His right to give away heaven's riches are contested. His ability to keep the promises He has made is mocked and ridiculed. The Holy Spirit listens to all these arguments for three days. Church, our inheritance is not being controlled by a piece of paper.