'Thread' in the Bible

that I will not take a thread or sandal strap or anything that belongs to you, so you can never say, ‘I made Abram rich.’

As she was giving birth, one of them put out his hand, and the midwife took it and tied a scarlet thread around it, announcing, “This one came out first.”

Then his brother, who had the scarlet thread tied to his hand, came out, and was named Zerah.