Yes, but that describes the clergyman, not the scripture.
See verse 16; Scripture equips the man of God (not necessarily a preacher, but anyone who spreads the Good News). He is adequate and prepared by Scripture.
I know, you won’t accept this, that’s fine. It’s in the Catechism to deny sola scriptura, thus you cannot accept the words in the Bible stating as much. That’s fine. I’ll just leave it there for you to consider.