Galatians 4:24 ASV

²²  For it is written, that Abraham had two sons, one by the handmaid, and one by the freewoman.

²³  Howbeit the `son' by the handmaid is born after the flesh; but the `son' by the freewoman `is born' through promise.

²⁴  Which things contain an allegory: for these `women' are two covenants; one from mount Sinai, bearing children unto bondage, which is Hagar.

²⁵  Now this Hagar is mount Sinai in Arabia and answereth to the Jerusalem that now is: for she is in bondage with her children.

²⁶  But the Jerusalem that is above is free, which is our mother.