Leviticus 25:10-17
And you shall hallow the fiftieth year, and proclaim liberty throughout all the land to all the inhabitants thereof: it shall be a jubilee to you; and you shall return every man to his possession, and you shall return every man to his family.
Torrey's Topical Textbook—AKJV

Galatians 4:22-26,31
For it is written, that Abraham had two sons, the one by a female slave, the other by a free woman.
Torrey's Topical Textbook—AKJV