2 And he shall plant in the hearts of the children the promises made to the fathers, and the hearts of the children shall turn to their fathers.
As I mentioned during my Book of Mormon blogging, this portion of Malachi is the only scripture that I’m aware of that is quoted in the Old Testament, New Testament, Book of Mormon, D&C, and the Pearl of Great Price (in Joseph Smith History). As such, the Lord has underscored its importance for us and our day. 

I love seeing how the Lord has planted in the hearts of our generation a great desire to know more about ancestors and given us the tool to learn more. I see that desire in non-Mormon colleagues and friends as well as in those I know in the Church. We feel a longing to connect to the past and to be part of a chain of belonging. But only those who understand the ordinances of the temple can fully see how that desire can be vindicated. Our work is vital to ensuring that we can be united eternally with all those who came before. I’m so grateful for my witness of the temple and temple Covenants and the promise of eternity taught therein.