Many solid Christian works are old enough to be in the public domain, leaving us with many free biblical study resources online, commentaries and more. There are so many helpful resources online that it can be overwhelming. Below are a handful of recommendations among many others that could be mentioned. (And always feel free to ask your pastor for further recommendations!)
Free Online Bible Study Tools
Bible Hub (biblehub.com/commentaries) gives a list of links to numerous commentary sets. Follow the links, and specifically recommended are Keil and Delitsch Old Testament Commentary, Spurgeon’s Treasury of David, Matthew Henry’s Concise or Full Commentary on the Whole Bible, and Calvin’s Commentaries.
For the New Testament, while not technically commentaries, John MacArthur’s sermons are nonetheless thorough and address every passage in the NT. They are all transcribed by Grace to You at www.gty.org/library/resources/sermons-library/scripture.
For digging into a passage itself, helpful Bible study sites are Bible Arc (biblearc.com), the Bible Web App (biblewebapp.com/study/).
Free Bible Software
E-Sword is a program that is free for download at www.e-sword.net. This program allows you to download multiple public domain commentary sets, Bible translations, lexicons, atlases, and more. The website provides training on how to use the program as well. It has been downloaded over 35,000,000 times and is used in 235 countries.
Recommended Christian Blogs
While I obviously cannot endorse every single thing that anyone might say, for those who enjoy Christian blogs that generally give solid answers to current topics, here are a few worth recommending:
Pastor regularly writes articles for our Sunday bulletin. See his bio on our staff page.