"“You have injured the cause of God; your willful course has wounded the hearts of God's people. Your influence encourages a slack state of things in the church. You should bear a living, pointed testimony. Stand out of the way of the work of God, step not in between God and His people. You have too long wrapped up the sharp testimony, and stood opposed to the severe censure which God lays upon individual wrongs. God is correcting, and proving, and purifying His people. Stand out of the way that His work be not hindered. He will not accept a smooth testimony. Ministers must cry aloud, and spare not. The Lord has given you a powerful testimony, calculated to strengthen the church and arouse unbelievers. But these things wherein you lack must be corrected, or your testimony will become powerless, and your influence injure the cause of God. The people look to you for an example. Do not mislead them. Let your influence be to correct wrongs in your family and in the church.” 1T 215.2"
"Cry aloud, spare not, lift up thy voice like a trumpet, and shew my people their transgression, and the house of Jacob their sins."
The EGW passage directly echoes Isaiah 58:1, particularly the phrase 'cry aloud, spare not.' The context of both passages also involves rebuking sin and calling people to repentance.