Yes, professing is a Scrabble word!

Verb

1. Practice as a profession, teach, or claim to be knowledgeable about

2. Confess one's faith in, or allegiance to

3. Admit (to a wrongdoing)

4. State freely

5. Receive into a religious order or congregation

6. Take vows, as in religious order

7. State insincerely

Noun

1. An open avowal (true or false) of some belief or opinion