Commentary for Psalms 76:3

His Tabernacle was in Shalem – Then His Tabernacle will be in Shalem, meaning that the Holy Temple will be rebuilt there. The verse mentions Zion in particular because it is the place of the king. Shalem is Jerusalem, as it says “And Malchizedek the king of Shalem…” (Genesis 14:18) This is Shem the son of Noah who called the place Shalem. Avraham called the Holy Temple Yireh, as it says “And Abraham named that place, The Lord will see (yireh)…” (Genesis 22:14) The Holy One said: if I call it as Shem called it, I will nullify the words of Avraham. And if I call it yireh, as Avraham called it, I will nullify the words of Shem. He called it Jerusalem (Yirushalayim).

His tabernacle was in Shalem – This is referring to Jerusalem. Perhaps she is called Shalem because she is perfectly positioned opposite the gate of heaven, or that she is fit to be in peace. Or perhaps they called her thus in a prayerful fashion, like “ask for the peace of Jerusalem…” (Tehillim 122:6)

His tabernacle was in Shalem – In Jerusalem because there the masses settled, there was Gd’s tabernacle (sukkah) because a tabernacle is a temporary dwelling. And His dwelling place in Tzion. In Tzion the king, the Sanhedrin and the priest of Gd sat, there His dwelling was permanent because there was the Sanctuary of Gd.