I Yam What I Yam

"I Yam What I Yam."  Who said that?

Your husband?   Er....yeah, .....I was really thinking of someone else.
"Popeye."  Yes, you are correct.  But there is really someone before Popeye.  Read 1Corinthians 15:10.

Now, who said, "By the grace of God, I am what I am..."?