I have been working on a commentary on the Psalms. I have decided to compile some helpful links that I discovered during my research. It includes a mix of exegetical and sermonic links. Here is what I have for Psalm 41 (in no particular order). Feel free to mention any that you find helpful in the comments section.
Literary analysis of Psalm 41: http://psalmsstudy.com/psalms-literary-analysis-by-chapter/literary-analysis-psalm-41-blessed-adonai-god-israel-times-times-amen-amen
Analysis by C. J. Labuschagne: https://www.labuschagne.nl/ps041.pdf
William Barrick’s notes: https://drbarrick.org/files/studynotes/Psalms/Ps_041.pdf
David Guzik’s notes, “Psalm 41 – Prayer for Help in Sickness and Against Whispering Traitors”: https://enduringword.com/bible-commentary/psalm-41