Galatians 4:22-24

Young's Literal Translation

²² for it hath been written, that Abraham had two sons, one by the maid-servant, and one by the free-woman,

²³ but he who [is] of the maid-servant, according to flesh hath been, and he who [is] of the free-woman, through the promise;

²⁴ which things are allegorized, for these are the two covenants: one, indeed, from mount Sinai, to servitude bringing forth, which is Hagar;