Roma 9:9

9:9 For this is what the promise declared: ¹  “About a year from now ²  I will return and Sarah will have a son.” ³ 

Roma 11:29

11:29 For the gifts and the call of God are irrevocable.

[9:9]  ¹ tn Grk “For this is the word of promise.”

[9:9]  ² tn Grk “About this time I will return.” Since this refers to the time when the promised child would be born, it would be approximately a year later.

[9:9]  ³ sn A quotation from Gen 18:10, 14.