Jewish Adoption Law: Welcoming Children Into the Family

Raising a Child: The Highest Act

The Talmud makes a striking statement: “Whoever raises an orphan in their home, Scripture regards it as if they gave birth to them” (Sanhedrin 19b). The sages point to Moses, who was raised by Pharaoh’s daughter Batya — and to the many biblical figures whose families were formed not only by biology but by love, commitment, and choice.

Yet Jewish law and adoption have a complicated relationship. Halakha does not have a formal adoption mechanism equivalent to Western legal adoption, where an adopted child becomes legally identical to a biological child. The reasons are not callousness — quite the opposite. Jewish law’s treatment of adoption reflects its particular concerns about identity, lineage, and obligation.

The Halakhic Framework

In Western law, adoption creates a complete legal fiction: the adopted child is treated as if born to the adoptive parents. Jewish law, which carefully tracks lineage for purposes of priestly status (kohen, levi, yisrael), inheritance, and marriage restrictions, cannot create this same fiction without potentially causing halakhic complications.

For example, if two children adopted into the same family were not biologically related, they would technically be permitted to marry each other — something that would be prohibited if they were biological siblings. Conversely, adopted children might unknowingly be related to potential marriage partners in ways that would create prohibited unions.

These concerns are not about valuing adopted children less. They arise from the halakhic system’s meticulous attention to genealogical relationships that affect ritual and family law.

Conversion of Adopted Children

When a Jewish family adopts a child who is not halakhically Jewish (not born to a Jewish mother), the child undergoes conversion. For infant boys, this includes circumcision (brit milah) and immersion in a mikveh. For girls, mikveh immersion is the primary ritual.

A significant halakhic principle applies: since the child cannot consent to conversion, the rabbinical court (beit din) acts on the child’s behalf under the principle of zakhin l’adam shelo b’fanav — “one may act in a person’s benefit without their knowledge.” The assumption is that being brought into the Jewish people is a benefit.

However, traditional halakha recognizes that when the child reaches the age of majority (twelve for girls, thirteen for boys), they have the right to reject the conversion. If they continue to live as Jews, the conversion is considered retroactively confirmed.

Naming and Identity

The question of an adopted child’s Hebrew name carries emotional weight. Options include:

• Ben/Bat Avraham v’Sarah: The traditional formulation for converts, linking the child to the patriarch and matriarch of all Jews.
• Adoptive parents’ names: Increasingly common, reflecting the reality that these are the child’s parents in every meaningful sense.
• Birth parents’ names: Used in some communities for specific ritual purposes when the biological parents are known to be Jewish.

Each approach has advantages and potential sensitivities. Many families consult with their rabbi to find a naming practice that honors both the child’s origins and their family belonging.

Across Denominations

Reform Judaism generally takes a more expansive approach, treating adopted children as fully equivalent to biological children in all respects. Conservative Judaism navigates a middle path, generally requiring conversion for non-Jewish children but emphasizing full family integration. Orthodox practice maintains the traditional halakhic distinctions while strongly affirming the mitzvah of raising children.

All streams of Judaism agree on the fundamental principle: raising a child — any child — in a loving Jewish home is among the most sacred acts a person can perform. The halakhic details differ, but the value is universal.

The Heart of the Matter

Jewish adoption law, at its best, reflects two simultaneous commitments: fidelity to a legal system that takes identity and lineage seriously, and profound love for the children who enter Jewish families by any path. The Talmud’s equation — raising a child is like giving birth — remains the tradition’s north star, even as the legal details require careful navigation.