- Rhett was unwilling to listen to what his friend told him.
- Whoever said that the early bird catches the worm was right.
A noun clause is a dependent clause that acts as a noun, it can act as the subject and usually starts with 'how, that, what, whatever, when, where, whether, which, whichever, who, whoever, whom, whomever, or why.'
"...what his"
"Whoever"