Genesis 14:23

14:23 that I will take nothing belonging to you, not even a thread or the strap of a sandal. That way you can never say, ‘It is I who made Abram rich.’

Genesis 38:28

38:28 While she was giving birth, one child put out his hand, and the midwife took a scarlet thread and tied it on his hand, saying, “This one came out first.”