Pekudei: Chapter 11
"All the gold that was applied for the work"

Rabbi Shimon says that David sinned greatly when he ran from Saul, causing so many thousands to be killed including all the priests except Evyatar; this sin still goes unpunished. He tells us that the title verse means that God took the gold the people gave for the Tabernacle as expiation for their sin of creating the golden calf. Finally, he explains that Moses and Betzalel combined above and below, Tiferet with Yesod, while Betzalel and Aholiav combined right and left, Chesed and Gvurah, so that the Tabernacle was the union of upper and lower, left and right.