"And I will bring them, and they shall dwell in the midst of Jerusalem: and they shall be my people, and I will be their God, in truth and in righteousness."
The EGW passage directly references Zechariah 8:8, quoting the phrase "in truth and in righteousness."
"Thus saith the Lord; I am returned unto Zion, and will dwell in the midst of Jerusalem: and Jerusalem shall be called a city of truth; and the mountain of the Lord of hosts the holy mountain."
EGW directly quotes Zechariah 8:3.