Krishna makes an extraordinary declaration. Among all human beings, no one does anything more pleasing to Him than the person who shares the Gita's teaching with devotees. And there will never be — in all of time — anyone dearer to Him on this earth.
The scope of this statement is worth pausing over. Not just now. Not just among certain people. Among all human beings, across all time, on the entire earth. The person who carries this knowledge forward with love holds a place in Krishna's heart that is unsurpassed.
This is Krishna's way of elevating the act of sharing truth above every other form of devotion — above ritual, above austerity, above even meditation. The one who helps another person understand receives the highest love.