Most preachers and serious Bible students have at least one set of Bible commentaries. As explained on www.bumchecks.com, not all sets of Bible commentaries are of equal value.
Here are some of the better known sets of Bible commentaries ; as stated on my home page, I do not endorse everything that you may find in these books.
Truth for Today Commentaries Series
The Gospel Advocate Commentary
The Complete Biblical Library
Lenski’s Commentary on the New Testament
Whedon’s Bible Commentary
Bengel’s New Testament Commentary
Warren Wiersbe’s Bible Exposition Commentary
Holman New Testament Commentary
The Collected Writings of W.E. Vine
Jamieson, Fausset and Brown’s Commentary
Adam Clarke’s Six Volume Commentary
The Expositor’s Bible Commentary
The Beacon Bible Commentary