The Italy international was being linked with a move away from Juventus in the summer transfer window, but Marchisio stressed that a departure was never an option for him.
"Although there were a lot of rumours about a potential transfer, I always had the club's full confidence," Marchisio was quoted as saying by Tuttosport.
"I never even thought about leaving Juventus. I had only just signed a contract extension and had absolutely no reason to think about a transfer."
The Juventus star then went on to discuss his side's title credentials and reminded that it is still too soon to think about winning the scudetto.
"It's not like we're not talking about the title, but it's still very early," he said. "At the moment, we're first in the table and that's important to us. However, there are so many more games to be played.
"We have shown that we can play some good football and we will now have to keep up that good form. We can't make any mistakes."
Juve currently sit top of the Serie A table with 29 points from 13 games, two points clear of nearest rivals AC Milan and Udinese.
How do you stay up to date with football when on the move? With http://m.goal.com – your best source for mobile coverage of the beautiful game.