Pienaar, 28, is out of contract next summer and has been linked with a host of clubs including Tottenham and Bayern Munich, but Moyes is ready to risk losing the player on a free transfer rather than sell him this summer.
"We are not listening to offers for him, and he is not going to be sold, because we don't want to sell him," he said in the Daily Mirror. "Steven plays for Everton, and that's it really, and I don't know any more than that."
It appears Spurs have no intention of testing Everton's resolve. Asked whether he would be looking to sign the player, Harry Redknapp told Soccernet: "I don't think so."