"Esther again pleaded with the king, falling at his feet and weeping. She begged him to put an end to the evil plan of Haman the Agagite, which he had devised against the Jews." NIV translation
The fact still remained that there was a law on the books that called for the destruction of the Jews and it could not be changed or cancelled. Because of that fact, Esther goes before the king once again on behalf of the people. This too is a picture of how we were under condemnation by the Law as sinners and the Law could not be changed. That is why Jesus said that He did not come to abolish the Law but to fulfill it (see Matthew 5:17).
"Then the king extended the gold scepter to Esther and she arose and stood before him." NIV translation
Once again, the king showed Esther mercy when she came into his presence. This is a beautiful picture of God's mercy for us. When we humble ourselves in the presence of God, we can be sure that He will extend His mercy to us once again.
"'If it pleases the king,' she said, 'and if he regards me with favor and thinks it the right thing to do, and if he is pleased with me, let an order be written overruling the dispatches that Haman son of Hammedatha, the Agagite, devised and wrote to destroy the Jews in all the king's provinces.'" NIV translation
Esther asked the king to issue another order that would overrule the previous law. This is a picture of what Jesus Christ did for us in that He not only kept the law on our behalf but He also freed us from it. That is what Paul was talking about, in Colossians 2, when he spoke of Jesus canceling the code on our behalf.
"'For how can I bear to see disaster fall on my people? How can I bear to see the destruction of my family?'" NIV translation
The queen made it personal by identifying herself with the rest of the Jews. That is a good lesson for us as Christians in that we need to continue to remember that we were once lost sinners just like those around us. As Esther said, how can we bear to see disaster fall on them?