19 God said, “No, but ^gSarah your wife shall bear you a son, and you shall call his name ^hIsaac.¹ I will establish my covenant with him as an everlasting covenant for his offspring after him.

16 Now ^athe promises were made ^bto Abraham and to his offspring. It does not say, “And to offsprings,” referring to many, but referring to one, ^c“And to your offspring,” who is Christ.