So far as I know, two peoples in the world claim the ancestry of Abraham and the blessings of the Abrahamic covenant: the Jewish people and members of the Church of Jesus Christ of Latter-day Saints (Mormons). Mormons claim the blessings of that ancestry, mostly through Ephraim and Joseph, but occasionally through others of the twelve tribes, as told to them by a Patriarch of the Church. The scriptures promise great blessings to "Ephraim and his fellows," including the Priesthood and the power to gather the nations unto Christ. The Abrahamic covenant is also a major part of the basis for the Jewish state of Israel. Now, Christ told the Jews to do the works of Abraham. What does that mean?
For Latter-day Saints, it means to ask and recieve knowledge from God. The LDS Book of Abraham is a great blessing, and it says that Abraham received many revelations. We can inherit this blessing. We can receive all of the blessings of the Priesthood through temple ordinances and covenants that are necessary for us in this life to lead to exaltation and eternal families.
For the Jewish people, it means to do their best to make peace with their neighbors. In the book of Genesis, Abraham made sacrifices in order to guarantee peace with those around him, even when they were the offenders. In Genesis chapter 13, Abraham gives part of the land promised to him to his nephew Lot when both of them became too prosperous to share the same herding and grazing grounds. He shared his blessing generously. He had every right to ask Abraham to leave, but he did not. Isaac did the works of Abraham his father in Genesis 26, when he kept digging wells until there were enough that everyone was happy.
I hope that all the people of the world will do the works of Abraham and receive the promised blessing. It is a tremendous blessing indeed. No greater promises are made in the scriptures to those who are faithful.