Galatians 4:23

But one, the son by the slave woman, was born by natural descent, ¹  while the other, the son by the free woman, was born through the promise.

Ge 17:15-19; Ge 18:10-14; Ge 21:1,2; Ro 4:18-21; Ro 9:7,8; Ro 10:8; Heb 11:11

¹ tn Grk “born according to the flesh”; BDAG 916 s.v. σάρξ 4 has “Of natural descent τὰ τέκνα τῆς σαρκός children by natural descent Ro 9:8 (opp. τὰ τέκνα τῆς ἐπαγγελίας). ὁ μὲν ἐκ τῆς παιδίσκης κατὰ σάρκα γεγέννηται Gal 4:23; cp. vs. 29.”