Genesis 17:15

17:15 Then God said to Abraham, “As for your wife, you must no longer call her Sarai; ¹  Sarah ²  will be her name.

Genesis 20:12

20:12 What’s more, ³  she is indeed my sister, my father’s daughter, but not my mother’s daughter. She became my wife.

[17:15]  ¹ tn Heb “[As for] Sarai your wife, you must not call her name Sarai, for Sarah [will be] her name.”

[17:15]  ² sn Sarah. The name change seems to be a dialectical variation, both spellings meaning “princess” or “queen.” Like the name Abram, the name Sarai symbolized the past. The new name Sarah, like the name Abraham, would be a reminder of what God intended to do for Sarah in the future.

[20:12]  ³ tn Heb “but also.”