came to pass.

Genesis 38:1
About that time, Judah left his brothers and settled near a man named Hirah, an Adullamite.

travailed.

Genesis 35:16
Later, they set out from Bethel, and while they were still some distance from Ephrath, Rachel began to give birth, and her labor was difficult.

midwife.

Genesis 35:17
During her severe labor, the midwife said to her, "Do not be afraid, for you are having another son."

scarlet thread.

Joshua 2:18
unless, when we enter the land, you have tied this scarlet cord in the window through which you let us down, and unless you have brought your father and mother and brothers and all your family into your house.