Zohar Ki Tetze
“כִּי בַשָּׂדֶה מְצָאָהּ צָעֲקָה הנער [הַנַּעֲרָה] הַמְאֹרָשָׂה וְאֵין מוֹשִׁיעַ לָהּ”
“When he found her in the field, the engaged girl cried out, but there was no one to save her.”
The voice is the force that produces the spoken words. Even in English the term is “Speak your voice (or Mind)” distinguish between inner voice and spoken words. The voice is a concealed force, Zeir Anpin, that can be expressed out. It is the aspect of male. The sound is the manifestation of the voice in Malchut and therefore it’s a female aspect.
Moses is Zeir Anpin and he was engaged to the girl, Malchut. Their wedding would be at the Final Redemption.
The girl cries for him but he cannot go into the field to redeem her until the Final Redemption, when they can be in complete unification. One of the reasons to why God didn’t allow Moses to enter the Land of Israel was because the Holy Land is Malchut and the aspect of the girl. If Moses were to unite with the land of Israel, as Zeir Anpin he would have created a continuous flow of light from Zeir Anpin to Malchut and bring about the Final Redemption. It just wasn’t the right time for the ‘wedding’.