 Subject matter. So this is one of the epistles of Paul where he was actually locked up when he wrote this letter. He was locked up and he wrote this letter. And that's why that first sentence to me just blows me away because when verse 3 says, I thank God every time I remember you. Now, mind you, he's locked up in prison. And in his letter, this was when he said, I thank God every time that I remember you. Mm-hmm.