Yevamot 63 - Man must have children
As Rav was leaving Rabbi Chiya, Rabbi Chiya asked him, "What is worse than death?" Rav searched for the answer and found it, "I found - bitter than death - a bad wife." Rabbi Chiya intended to save Rav from a bad wife, but his prayer was unsuccessful, and Rav's wife used to aggravate him, cooking the opposite of what he asked. Rav's son, Chiya, started reversing Rav's requests so that when the wife cooked a different dish, Rav would get precisely what he wanted. Rav said, "Your mother has improved her ways!" Chiya confessed that he was reversing orders. Rav said, "I could have learned from you! And yet, it is not good to say a lie."
A teaching of Ben Sira: "A beautiful wife - happy is her husband, the number of his days is doubled."
The Messiah will only come when all the souls initially present in Adam will have a chance to be born. Accordingly, one who does not engage in procreation is considered as spilling blood and diminishing God's image.
Art: A Portrait Of Nobleman With His Wife And Two Children by Johann Hulsman
