Who is Pablo in "The Life of Pablo"?

People have been debating about who Pablo is referring to in Kanye West's new album The Life of Pablo. It turns out Pablo is actually St. Paul the Apostle. This is evidenced by multiple things.

Kanye's Tweet

So, Kanye West is saying that people have been wrong- The Life of Pablo is actually about Paul the Apostle.

Songs on his Album

Ultralight Beam

Kanye West's first song on The Life of Pablo is "Ultralight Beam". This song draws parallels between himself and St. Paul. For example, the name "Ultralight Beam" refers to when St. Paul (Saul at the time) was blinded by a light beam while journeying to Damascus to persecute Christians. He was blinded for three days, and after that time, he dedicated his life to serving God. 
The outro to the song is spoken by Kirk Franklin, a gospel musician. He says

"Father, this prayer is for everyone that feels they're not good enough. This prayer's for everybody that feels like they're too messed up. For everyone that feels they've said "I'm sorry" too many times. You can never go too far when you can't come back home again. That's why I need...
Faith, more, safe, war

So, he's saying that just because someone has a flaw, it doesn't mean that God won't accept them. Paul persecuted Christians, and later he became one of the most influential Christian figures.

Wolves

Wolves compares Kanye and Kim to Joseph and Mary. In the song, he says 

I said baby what if you was clubbin'
Thuggin', hustlin' before you met your husband?
Then I said, "What if Mary was in the club
When she met Joseph around hella thugs?

He's saying that although Mary is no religiously just, she was once immoral, flawed, and imperfect. Christianity is a major motif in his new album, and to have the album about St. Paul, who Kanye feels he mirrors, demonstrates his ardent Christian faith.