"We read in the prophecy of Zechariah that when Satan with all his synagogue stood up to resist the prayers of Joshua, the high priest, and to resist Christ, who was about to show decided favor to Joshua, the Lord said to Satan, “The Lord rebuke thee, O Satan; even the Lord that hath chosen Jerusalem rebuke thee: is not this a brand plucked out of the fire?” [ Zechariah 3:2 .] GW 325.1"
"And the Lord said unto Satan, The Lord rebuke thee, O Satan; even the Lord that hath chosen Jerusalem rebuke thee: is not this a brand plucked out of the fire?"
Ellen White directly references Zechariah 3:2 in this passage.
"truth; it is as a new revelation to them, and they cannot bear to have all the truth, in its most striking character, presented to them at the outset. All is new and strange, and wholly unlike that which they have heard from their ministers; and they are inclined to believe what the ministers have told them,—that Seventh-day Adventists are infidels, and do not believe the Bible. Let the truth be presented as it is in Jesus, line upon line, precept upon precept, here a little and there a little. GW 325.3"
"For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:"
EGW directly quotes and applies Isaiah 28:10 in the context of teaching truth gradually.