[Avodah] Mood of Tehillim

[Cantor Wolberg]

But I have a question about the first psalm:
(Psalm 95).  It starts of with a resounding "Come! Let us rejoice!" but
ends on "and I swore in My wrath that they shall not enter the land of
contentment." Frankly, if I were the one putting Kabbalat Shabbat
together, I'd be tempted to leave out the last few verses of that Psalm.
Of course, I'm sure I could find some good reasons to include it. Do you
know of any commentator who talks about this?

I don't know of any commentator off hand but I have my own thoughts.
Just like you break the glass at a chasana and when building a new house
leave an area unfinished, so too, for Kabbalas Shabbos, the last  
sentence
it the broken glass.
K.T.
ri