Your two breasts are like two fawns, twins of a gazelle.

When the time came for Rebekah to give birth, ¹  there were ²  twins in her womb.

When it was time for her to give birth, there were twins in her womb.

Your two breasts are like two fawns, twins of the gazelle grazing among the lilies.

Your teeth are like a flock of newly-shorn sheep coming up from the washing place; ¹  each of them has a twin, and not one of them is missing.

Your teeth are like a flock of sheep coming up from the washing; each has its twin; not one of them is missing.

Not only that, but when Rebekah had conceived children by one man, ¹  our ancestor Isaac –

After three months we put out to sea ¹  in an Alexandrian ship that had wintered at the island and had the “Heavenly Twins” ²  as its figurehead. ³ 

¹  it was said to her, “The older will serve the younger,” ² 

even before they were born or had done anything good or bad (so that God’s purpose in election ¹  would stand, not by works but by ²  his calling) ³  –

Isaac prayed to ¹  the Lord on behalf of his wife because she was childless. The Lord answered his prayer, and his wife Rebekah became pregnant.

When his brother came out with ¹  his hand clutching Esau’s heel, they named him Jacob. ²  Isaac was sixty years old ³  when they were born.