The 19th century published its share of commentaries, and Presbyterians were at the forefront of that effort. Joseph Addison Alexander, the son of Archibald Alexander, was one of those men of whom the word "prolific" does not even begin to describe the amount of writing they are able to produce and publish in a normal life span. He wrote commentaries on Isaiah, Acts, Mark, Matthew, the Psalms - and he had time to preach. (This doesn't even include everything he wrote that's available in digital form! It may take you a lifetime to read what he wrote in his 51 years of life. But here it is, available to you when you need it.) Another 19th century American Presbyterian, Thomas Verner Moore, wrote on the post-exilic prophets Haggai, Zechariah and Malachi. You can find more commentaries on our site by visiting our Commentaries page.