Here is the link to sermons preached by Philip Graham Ryken, in 1996 and 1997, at College Church in Wheaton, IL. You can also find several D.A. Carson sermons, preached at College Church, here. When you follow the link go to “speaker” search, select the names above, and hit the magnifying glass link button below the speaker name. This will bring up all the sermons that they preached at College Church.
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)