"Here is revealed the sanctuary of the new covenant. The sanctuary of the first covenant was pitched by man, built by Moses; this is pitched by the Lord, not by man. In that sanctuary the earthly priests performed their service; in this, Christ, our great High Priest, ministers at God's right hand. One sanctuary was on earth, the other is in heaven. GC 413.2"
"A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man."
EGW directly quotes and expands upon the concept of the true tabernacle pitched by the Lord, as described in Hebrews 8:2.