The midwife bound upon his hand a scarlet thread, in token of his being the first-born, which she confidently expected he would be. This breach be upon thee, be imputed to thee, as the same phrase is taken Genesis 16:5.
Related Commentaries of Genesis 38:28
Genesis 38:28
28 And it came to pass, when she travailed, that the one put out his hand: and the midwife took and bound upon his hand a scarlet thread, saying, This came out first.