"in Christ and obedience to the law of God. In every age the archenemy adapts his temptations to the prejudices or inclinations of those whom he is seeking to deceive. In apostolic times he led the Jews to exalt the ceremonial law and reject Christ; at the present time he induces many professing Christians, under pretense of honoring Christ, to cast contempt on the moral law and to teach that its precepts may be transgressed with impunity. It is the duty of every servant of God to withstand firmly and decidedly these perverters of the faith and by the word of truth fearlessly to expose their errors. AA 387.1"
"And no marvel; for Satan himself is transformed into an angel of light."
Both passages discuss the deceptive nature of Satan. The EGW passage describes how Satan adapts his temptations, while the verse states that Satan transforms himself into an angel of light. The core idea of deception is present in both.
"Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace."
Both passages address the issue of justification by the law versus grace in Christ. The EGW passage discusses the enemy's tactics of leading people to either exalt the ceremonial law or reject the moral law, while the verse states that those justified by the law are fallen from grace.
"In his effort to regain the confidence of his brethren in Galatia, Paul ably vindicated his position as an apostle of Christ. He declared himself to be an apostle, “not of men, neither by man, but by Jesus Christ, and God the Father, who raised Him from the dead.” Not from men, but from the highest Authority in heaven, had he received his commission. And his position had been acknowledged by a general council at Jerusalem, with the decisions of which Paul had complied in all his labors among the Gentiles. AA 387.2"
"Paul, an apostle, (not of men, neither by man, but by Jesus Christ, and God the Father, who raised him from the dead;)"
The EGW passage directly quotes Galatians 1:1, making it a clear and explicit allusion.
"When therefore Paul and Barnabas had no small dissension and disputation with them, they determined that Paul and Barnabas, and certain other of them, should go up to Jerusalem unto the apostles and elders about this question."
Both passages refer to Paul's journey to Jerusalem and the council there. The EGW passage references the council's acknowledgement of Paul's position, which stems from the events described in Acts 15.