Since part of the work of the pastor is to preach the
biblical text, commentaries can make up a large part of a pastor’s library. There
are pertinent questions to ask relative to commentaries: Which commentaries? And
When? The second question is easier to answer.
When to Buy
My recommendation is that you hold off on buying
commentaries on a particular book until you are ready to begin preparing to
preach that book. My reasoning is as follows: first, new commentaries are always
coming out. That means that what is a really good commentary now may be superseded
five years down the road. For example, the two top-rated commentaries on
Genesis on bestcommentaries.com are those by Gordon Wenham and Victor Hamilton.
Both are a generation old. Hamilton was published in 1990 and Wenham in 1987.
There are seventeen commentaries on Genesis listed as forthcoming, with several
of them being candidates to replace Wenham and Hamilton. If you are not planning
on preaching on Genesis any time soon, you are better off waiting to buy.
Second, for most pastors, commentaries can be a significant
part of the budget. You need to ask yourself if you can afford to have several
thousand dollars’ worth of unused books sitting on your shelves.
To sum up: my recommendation on when to buy commentaries is
shortly before you are ready to begin preparing a series on a specific book of
the Bible.
Which to Buy?
You’ll get different advice from different people on this.
My approach is minimalistic. I recommend that you buy no more than five
commentaries on any particular book. You should have one technical commentary based
on the Hebrew or Greek text of the book. You should have one somewhat less
technical commentary that deals with selected matters related to the original languages
and that goes through the book passage by passage. A third commentary should be
expositional, not necessarily dealing with the original languages, but
explaining the movement of the book. A fourth commentary should be a pre-critical
commentary, which would generally be any pre-1850 commentary. My rationale for
this is that those commentaries are coming to the biblical material from a
different cultural setting, and therefore with a different set of questions to
ask of the text. This can make the pastor aware of some of the breadth of issues
that the biblical text addresses. A good source for identifying these
commentaries is Spurgeon’s Commenting and Commentaries (http://www.romans45.org/spurgeon/misc/c&c.htm).
Reading Spurgeon’s comments on the various commentaries is an education in
itself. Many of these older commentaries are now available online at archive.org.
A fifth commentary can be something of a duplicate of one of the other four.
My own sense is that when you move beyond this minimum, you
find yourself reading material that has already been covered in another
commentary.
What Not To Buy
Don’t buy sets. The quality and usefulness of the commentaries
in a set vary from one author to another. Commentary sets look nice on the
shelf, but you end up with books you never use.
Don’t buy older commentaries that are available online. Yes,
I know, that set of Keil & Delitzsch, or of Calvin, can look nice on the
shelf. But they are available free online. Commentaries are for consultation
and you will not be reading much at a time, so reading them online should not
be too difficult.