When I was growing up

 We got sugar cane and pecans in the mail for Christmas from mother's family in New Orleans 

Later on in the Bible

 The names got complicated hard to pronounce 

Do you think it was

 Some sugar cane in the garden of eden 

Probably wasn't that many

 Words formed at that time 

And Abel

 Was able to 

But possibly

 Sugar cane 

So Cain

 Since it probably wasn't cocaine 

So we read what happened

 But their names

Abel sheep

 He gave the first one to God 

Cain started doing whatever

 Then thought about God 

So now name

 Cain and able