They said to him, “Teacher, Moses wrote down God’s law like this, he said, ‘If a married man has no kids, and if he dies, then his brother has to marry his widow. Then they have to have kids, and everyone will call those kids that dead brother’s kids.’
So the next brother married that woman to follow God’s law, but he died too, before they could have a baby. Then the next brother did the same, but he died too, before they could have a baby.