"Chapter 37—The False and the True in Education The mastermind in the confederacy of evil is ever working to keep out of sight the words of God, and to bring into view the opinions of men. He means that we shall not hear the voice of God, saying, “This is the way, walk ye in it.” Isaiah 30:21 . Through perverted educational processes he is doing his utmost to obscure heaven's light. MH 439"
"And thine ears shall hear a word behind thee, saying, This is the way, walk ye in it, when ye turn to the right hand, and when ye turn to the left."
EGW directly quotes Isaiah 30:21.
"In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them."
Both passages discuss the obscuring of spiritual light by an evil force. EGW connects this to perverted education, while 2 Corinthians 4:4 speaks of the blinding of minds to the gospel. The connection is thematic and supports EGW's argument about the influence of evil.
"Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap."
While not a direct quote, the phrase 'infidelity is reaped' echoes the principle of sowing and reaping found in Galatians 6:7. The connection is clear and meaningful within the context of the surrounding text.