As the Israelites suffered from being given more slave work than they could accomplish with the quota of straw & bricks, and as they went hunrgy while their oppressors' bellies were full, God instructed Moses to go to Pharaoh and demand that the Israelites be allowed to go into the wilderness for a 3 day "Chag" Dance Festival [the root meaning of "Chag" is "dance in a circle"] to Y-h-v-h (shortened by some to "Jah").

Them Belly Full (But We Hungry):  Music by Bob Marley.  Words Modified by Rabbi Nadav Caine

(Na-na-na-na, na-na na na-na; na-na-na-na na-na na na-na) x 2
Them belly full but we hungry, a hungry mob is an angry mob
Slavery, the work it tough, they give us bricks but it ain't enough
We're gonna dance to Jah music, dance
We're gonna dance to Jah music, dance
Forget your troubles and dance, forget your sadness and dance

Pharaoh wants our boys to die, the Israelites they start to cry
And now the weak must get strong, they say oh what a tribulation,
My belly full but me hungry. A hungry mob is an angry mob
Slavery, the work it tough, they give us bricks but it ain't enough
We're gonna dance to Jah music, dance
We're dancin to Jah music, we're dancin'
 
Them belly full but we hungry, a hungry mob is an angry mob
Slavery, the work it tough, they give us bricks but it ain't enough

Slavery (CONG: work it tough)
And all the bricks (CONG: it ain't enough)
A hungry mob (CONG: angry mob)
A hungry man (CONG: angry man)

Slavery (CONG: work it tough)
And all the bricks (CONG: it ain't enough)
A hungry mob (CONG: angry mob)
A hungry man (CONG: angry man)