The Butterfly Rhyme is a form of rhyme poetry that consists of two quatrains with an identical rhyming format and a rhyming couplet between the two quatrains. It also has a consistent rhyme pattern from top to bottom on every other "A" line.
A,B,A,B A,A A,B,A,B
Scars Left Behind: The Story of David and Bathsheba
He saw her bathing at twilight;
Comely her countenance, it was clear.
The wife of Uriah, the Hittite,
In his heart held insincere.
So he did to his delight,
When they lay in the dark of night.
Her husband died in the fight,
Placed in battle so severe
Through God's eyes this wasn't right;
To the king, Nathan did appear