The 19th century published its share of commentaries, and Presbyterians were at the forefront of that effort. Thomas Verner Moore wrote on the post-exilic prophets Haggai, Zechariah and Malachi, while Joseph Addison Alexander wrote on Isaiah (in two parts - the second part will be posted soon!). There are more commentaries that we need to find and make available, but hopefully soon all 19th-century Presbyterian commentaries will be accessible from this site.