King James Version (KJV) - Mark 12:19 >

Master, Moses wrote unto us, If a man’s brother die, and leave [his] wife [behind him], and leave no children, that his brother should take his wife, and raise up seed unto his brother.

Berean Study Bible (BSB) - Mark 12:19 >

“Teacher, Moses wrote for us that if a man’s brother dies and leaves a wife but no children, the man is to marry his brother’s widow and raise up offspring for him.