I don't know if this is the right place to post this so if the admins feel it belongs elsewhere please move 
I'm going through the mobile Ed course on the trinity and I was curious what MacArthur's thoughts were and started with his Hebrews commentary (which is 20+ years old now I believe). Long story short and a few google searches later I found the below article which was interesting because MacArthur reversed his position on the eternal sonship of christ. I made a copy of the article and put it into a word document and then put a note in my hebrews commentaries that links to it so I don't forget in the future. I'd link to the word document but the last time I posted a copy/paste from the web I was told that was not proper w/o permission first so I'll put this here in case others want to do the same and make their own word documents.
The article is actually posted twice on his GTY site and oddly enough each article has slightly different scripture reference points but here they are combined w/ duplicates removed from what I can see: Psalm 2:7; John 1:14; John 3:16; John 5:18; Hebrews 1:5; Phil. 2:5-8; John 5:19. The article content is the same though.
Links: www.gty.org/library/questions/QA130/ & www.gty.org/library/articles/A235/