Elder Bednar pointed out a bit of a conundrum. Joseph Smith said that the work of preaching the gospel was the most important work we could do.
But then seven years later he said the most important work we can do is seeking after our dead and doing their temple work.”
How can two different things both be the most important?
Elder Bednar said that what both of these activities have in common are the covenants they help people make with God. So whether on this side of the veil or the other, helping others make covenants with God is our most important work!