Phil Ryken has released his latest offering in the Preaching the Word series, edited by Kent Hughes. This is a great series as I have benefited from others in the set.
This latest volume is on the book of Ecclesiastes and is being offered at the Westminster Bookstore for a 45% discount. But its a limited time offer, so jump on it!
Also fantastic is this volume on 1 Samuel by John Woodhouse in the same series. I have tell you, I love this book. I have been using it as part of my prep work for Wednesday night Bible Study. It is expositional and Christ-centered! Two qualities hard to find together in one commentary. I highly recommend it!

I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them. For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naïve. (Romans 16:17-18)