His parents said this because they were afraid of the Judean leaders. For the Judean leaders had already agreed that anyone who professed Yeshua to be Messiah would be thrown out of the synagogue.
Therefore I make known to you that no one speaking by the Ruach Elohim says, “Yeshua be cursed,” and no one can say, “Yeshua is Lord,” except by the Ruach ha-Kodesh.
For many deceivers have gone out into the world—those who do not acknowledge Yeshua as Messiah coming in human flesh. This one is a deceiver and the anti-messiah.