Afterward his brother came out with the scarlet thread on his hand, and his name was called Zerah.
Genesis 38:30 · ESVView all translations

Genesis 38 is a dark chapter about Judah, Tamar and the sin between them. Its last verse names the second of the twins, Zerah, and commentators read that name as the turn from shame to the line that leads to Christ.

The names of the twins

One writer ties the scarlet thread and the twins' names into one picture. It is Christ's right to rule, showing itself in the darkest of settings.

The colour "scarlet" stands for rights of lordship. It is both remarkable and instructive to see how the thought of Christ's supremacy runs through Scripture like a "thread of scarlet." This beautiful thought appears in what may be one of the darkest chapters in the Old Testament, Genesis 38. In dark and shameful circumstances, something with power to "break through" and to "rise up" (as the names of the twins suggest) is clearly at work. It leads on to a generation from which David springs.

F. A. Hughes

The rising in Zerah's name

Zerah's name points to a sunrise. The same writer hears that word again in a promise of light for a people in darkness.

In that beautiful passage, Isaiah 60:1-7, the same thought is in view. Sin, darkness and turning away from God have marked His people, and thick darkness covers them. But the Lord rises upon them, His glory shines out, and nations and kings come to acknowledge the "rising" (Zerah) that has broken through the darkness and shown His supremacy over all.

F. A. Hughes

Zerah did not inherit the elder's place

The midwife's thread was meant to settle which twin was the elder. It did not. Every later list in Scripture puts the other brother first.

Scripture always puts Perez, the son of Judah and Tamar, ahead of his twin brother Zarah, or Zerah, so he held the right of the firstborn. In David's reign the family of Perez held the highest rank in the tribe of Judah, and it appears to have stood out for its many children and its strength.

William J. Hocking

Zerah's line still bore fruit

Losing the royal line did not mean losing a place. One writer traces what each brother's name produced in Israel's later history — the kings from one, and men of song and courage from the other.

Perez, the "breaker forth," breaks out into abundant fruit, which fills all the later history of Judah. From him come Judah's kings, and her great King. Twin with Perez comes Zerah, the sunrise. From him came singers, such as Ethan, and warriors, such as Shammah, Sibbechai and Maharai — strong defenders of the throne.

Numerical Bible Notes

Why the second twin is even mentioned

Matthew's genealogy of Jesus names Zerah, though the descent does not run through him. One writer suggests the mention is deliberate — it keeps the circumstances of the birth in view rather than hiding them.

Of all the women who might have been named, these four were, in different ways, the apparent blots on the genealogy. Far from hiding what was shameful about them, the record brings in details one might have thought could be left out. It is as if it wants to draw our attention to what might otherwise have been less noticed. So it mentions Zerah's twin birth with Perez, though Zerah himself is not in the line of the genealogy, as if to recall the sin that brought them into being.

The Bible Treasury

Grace running through a ruined family

Genesis 38 is full of human sin. One writer points to the genealogy of Jesus to show what God did with it.

Genesis 38 shows one of those remarkable cases where divine grace triumphs gloriously over man's sin. "It is evident that our Lord was descended from Judah" (Hebrews 7:14). But how? "Judah was the father of Perez and Zerah by Tamar" (Matthew 1:3). This is especially striking. God, in His great grace, rises above the sin and folly of man to bring about His own purposes of love and mercy.

C. H. Mackintosh

Another writer names Judah's guilt plainly, and then names what came through him.

Yet through this guilty Judah, and through Tamar, came the One who cleanses from all sin by His blood. He will reign over the universe to God's glory.

William Kelly

Summary

- Scarlet. The scarlet thread on Zerah's hand marks Christ's right to rule. His name marks a rising that breaks through the darkness.

- Reversal. The hand that came out first did not win the elder's place. Every later record puts Perez ahead of Zerah.

- Fruit. Zerah is not forgotten. From him came singers and warriors who defended the throne his brother's line would fill.

- Honesty. Zerah's name stands in Matthew's genealogy, though the line does not run through him. The record keeps the sin of that birth in plain view.

- Grace. Out of a ruined family God brought the One who cleanses from all sin. Grace won where nothing human deserved it.

Reviewed by Orion on September 17, 2026