Falkirk Free Church has a very helpful audio resource page with sermons and lectures by Edward Donnelly, Sinclair Ferguson, John L. Mackay and D.A. Carson. Among the audio you will find the following lectures by Sinclair Ferguson:
Daniel 1 “Nebuchadnezzar King of Babylon came to Jerusalem to besieged it.”
Isaiah 6 “I saw the LORD”
There is also a series there on the Ten Commandments by Edward Donnelly:
The preface to the Ten Commandments
The importance of the 5th commandment
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)