My daughter and I used to sing it this way:

Child, child, child, child
Will I live to see you grow?
I will fight for your future
I love you so. I love you so.

Oh what a goodly thing
for the children of the world
to live together
in peace. In peace.

Love, love, love, love
people we are made for love
love each other as ourselves
for we are one, we are one.

There's a tunnel along the bikepath here where I like to go with friends and sing this round.This round has some of the most haunting harmony I have ever heard.