Olam chesed yibaneh עוֹלָם חֶסֶד יִבָנֶה 

I will build this world from love... yai dai dai 
And you must build this world from love... yai dai dai 
And if we build this world from love... yai dai dai 
Then G-d will build this world from love... yai dai dai


haggadah Section: Songs
Source: Rabbi Menachem Creditor