לֹֽא־יָבֹ֧א פְצֽוּעַ־דַּכָּ֛א וּכְר֥וּת שָׁפְכָ֖ה בִּקְהַ֥ל יְהוָֽה׃ (ס)
He that is crushed or maimed in his privy parts shall not enter into the assembly of the LORD.
Targum Jonathan on Deuteronomy
He who is castrated is not fit to take a wife from the congregation of the Lord’s people.