Sforno on Exodus
ושכנתי בתוך בני ישראל. There to receive their service with goodwill and in order to listen to their prayers.
Rav Hirsch on Torah
V.45. Und diese Anwesenheit der Gottesherrlichkeit im Tempel ist selbst nur Dokumentierung seiner Gegenwart in der Nation, welcher Er Gott, d. h. Bestimmer ihres Geschickes und Leiter ihrer Handlungen, sein will.
Chizkuni
ושכנתי בתוך בני ישראל, “I shall dwell among the Children of Israel.” The reference is to the time when the flags would be erected, they being equivalent to a dividing fence between the camps of the Levites as such, and the ones performing duties in the compound of the Tabernacle.