Genesis 38:8 records the levirate marriage practice that the Sadducees' hypothetical scenario is based on.

Genesis 38:11 continues the levirate marriage narrative, with Judah instructing Tamar to wait for the next brother — similar to the scenario in the Sadducees' question.

Deuteronomy 25:5-10 is the original levirate marriage law quoted here — the basis for the Sadducees' hypothetical question.

Mark 12:19 is the parallel account of the same Sadducees' question — nearly identical wording of the levirate law.

Luke 20:28 is the parallel account of the same Sadducees' question — identical reference to Moses' command.

Leviticus 18:16 prohibits sexual relations with a brother's wife — the general rule for which the levirate law is a specific exception.

Ruth 4:5 describes the kinsman-redeemer marrying Ruth to preserve the dead's name — a direct parallel to the levirate duty cited.

Luke 20:33 continues the same hypothetical question about the woman married to seven brothers — directly follows the levirate citation.

In Ruth 1:11, Naomi applies the same levirate principle — she has no more sons to provide for her daughters-in-law.

In Ruth 3:13, Boaz acts as a kinsman-redeemer — a related family obligation to the levirate marriage duty here.