סי' אש"ה וקרק"ע עז"ר זא"ת שת"י הברכו"ת תגר"י פחת"י: א"ר אלעזר כל אדם שאין לו אשה אינו אדם שנאמר (בראשית ה, ב) זכר ונקבה בראם ויקרא את שמם אדם ואמר רבי אלעזר כל אדם שאין לו קרקע אינו אדם שנא' (תהלים קטו, טז) השמים שמים ליי והארץ נתן לבני אדם
וזה כי איש הנושא אשה כל אחד נקרא מתחילה חצי אדם, כי זכר בלא נקיבה פלג גופא מיקרי, ועתה גוף שלם בריה חדשה.
This is because when a man marries a woman, each one is called half of an adam (person). For a male without a female is considered half of a body, and now he has become a full body, which is a new creation.
§ Apropos the discussion with regard to the mitzva to have children, the Gemara cites statements about marriage in general. Rabbi Tanḥum said that Rabbi Ḥanilai said: Any man who does not have a wife is left without joy, without blessing, without goodness. He proceeds to quote verses to support each part of his statement. He is without joy, as it is written: “And you shall rejoice, you and your household” (Deuteronomy 14:26), which indicates that the a man is in a joyful state only when he is with his household, i.e., his wife. He is without blessing, as it is written: “To cause a blessing to rest in your house” (Ezekiel 44:30), which indicates that blessing comes through one’s house, i.e., one’s wife. He is without goodness, as it is written: “It is not good that man should be alone” (Genesis 2:18), i.e., without a wife. In the West, Eretz Yisrael, they say: One who lives without a wife is left without Torah, and without a wall of protection. He is without Torah, as it is written: “Is it that I have no help in me, and that sound wisdom is driven from me?” (Job 6:13), indicating that one who does not have a wife lacks sound wisdom, i.e., Torah. He is without a wall, as it is written: “A woman shall go round a man” (Jeremiah 31:21), similar to a protective wall.
(24) Hence a man leaves his father and mother and clings to his wife, so that they become one flesh.
The Gemara again addresses old age: Rabbi Yehuda HaNasi said to Rabbi Shimon ben Ḥalafta: For what reason did we not greet you during the Festival the way that my fathers greeted your fathers? This was a polite way of asking Rabbi Shimon ben Ḥalafta why he had not come to visit Rabbi Yehuda HaNasi. He said to him: Because I have grown old, and the rocks on the road have become tall, and destinations that are near have become far away, and my two feet have been made into three with the addition of a cane, and that which brings peace to the house, namely, the sexual drive which motivates a couple to make peace, is no more.
Rabbi Abbahu taught: What is the meaning of that which is written in Balaam’s blessing: “Who has counted the dust of Jacob, or numbered the stock [rova] of Israel” (Numbers 23:10)? The verse teaches that the Holy One, Blessed be He, sits and counts the times that the Jewish people engage in intercourse [revi’iyyoteihem], anticipating the time when the drop from which the righteous person will be created will arrive. And it was due to this matter that the eye of wicked Balaam went blind. He said: Should God, who is pure and holy, and whose ministers are pure and holy, peek at this matter? Immediately his eye was blinded as a divine punishment, as it is written: “The saying of the man whose eye is shut” (Numbers 24:3).