A scarlet thread, tied about the wrist, is mentioned in
Genesis 38.
Tamar becomes pregnant by her father-in-law,
Judah, and gives birth to twin boys. The following verses about this event are taken from the
King James Bible: As early as Rabbi
Shmuel ben Hafni Gaon, Jewish commentators noted that the placement of a red string on one's hand may be a good omen. Some sources imply it may even be placed around a finger. Some early Jewish commentators (such as Aggadas Bereishis) write that Joseph's coat (given to him by Jacob) was actually the exact same as the coat of the other Tribes, just that Jacob placed a red string on the cuffs. ==Through the ages==