We find it in Sifrei Devarim 290, part of the legal commentary on the Book of Deuteronomy.

The passage deals with a very specific situation: a man who refuses to go through with a yibbum, or levirate marriage. Now, what's a yibbum? Okay, imagine this: a man dies without children, and his brother is obligated to marry the widow. The purpose? To continue the deceased brother's line. But what happens if the surviving brother doesn't want to marry her? That’s where things get interesting.

The text states, "and they shall speak to him": as befits him. Who are "they?" Well, it seems to be referring to the court or community elders. And what do they say? Essentially, they try to talk some sense into him. If there’s a significant age gap – he’s young and she’s old, or vice versa – they’re supposed to point it out. "What do you want with a young girl?" they might ask. Or, "What do you want with an old woman? Find someone like yourself and don't bring strife into your household!"

Can you imagine that conversation? It’s pretty direct. It's like these elders are acting as relationship counselors, trying to mediate the situation before it escalates. They’re not just concerned with following the letter of the law, but with preventing potential unhappiness and conflict.

But here's where it gets even more specific. The passage continues: "then he shall stand up and he shall say: I did not desire to take her." There's a ritual element here. The man has to physically stand up when he declares his refusal. Why? The text tells us, "We are hereby apprised that he says his words only while standing." It emphasizes the formality and gravity of the situation. This isn’t a casual decision; it’s a formal declaration before the community.

And finally, there's a very important clarification: "I did not desire to take her": and not that the L-rd did not desire her (by reason of arayoth)." Arayoth refers to forbidden relationships, incestuous unions. The man's refusal cannot be based on the claim that the marriage would violate laws of forbidden relations. The issue must be about his personal desire, or lack thereof. It’s a subtle but crucial point, ensuring that the man isn't trying to avoid the obligation on illegitimate grounds.

So, what can we take away from this little snippet of Jewish law? It’s a reminder that even within a framework of strict rules and obligations, there's room for human considerations, for acknowledging personal desires and potential conflicts. And it highlights the role of the community in mediating those conflicts, offering advice, and ensuring that decisions are made thoughtfully and with integrity. It reminds us that even in ancient times, the rabbis were concerned with not just the letter of the law, but also the well-being of the people involved.