Hineh mah tov u-mah na-im
Shevet achim gam yachad

Behold how good and fitting it is when brothers dwell together in unity

"Na-im" is pronounced "nah-eem", although it usually comes out more like "nah-yeem". Some people sing "achot", sisters, instead of "achim", or alternate the two.

Aloha,
Mark