Moses
Genesis 22:24ESV·traditional attribution

Moreover, his concubine, whose name was Reumah, bore Tebah, Gaham, Tahash, and Maacah.

Matthew Henry Presbyterian @wholebiblehenry

This is recorded here, 1. To show that though Abraham saw his own family highly dignified with peculiar privileges, admitted into covenant, and blessed with the entail of the promise, yet he did not look with contempt and disdain upon his relations, but was glad to hear of the increase and prosperity of their families. 2.

Commenting on Genesis 22:20-24

Geneva Bible Notes Reformed @genevanotes

And his concubine, whose name [was] Reumah, she bare also Tebah, and Gaham, and Thahash, and Maachah. (i) Concubine is often used to refer to those women who were inferior to the wives.

Adam Clarke Methodist @methodicalclarke

His concubine - We borrow this word from the Latin compound concubina, from con, together, and cubo, to lie, and apply it solely to a woman cohabiting with a man without being legally married. The Hebrew word is פילגש pilegesh, which is also a compound term, contracted, according to Parkhurst, from פלג palag, to divide or share, and נגש nagash, to approach; because the husband...