"Another portion of Scripture evidently written with reference to the last days, brings the same fact plainly to view. 1 Thessalonians 5 . The apostle opens the chapter with these words: “But of the times and the seasons, brethren, you have no need that I write unto you. For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.” In Verse 4 he adds, “But ye, brethren, are not in darkness, that that day should overtake you as a thief.” Then he gives them sundry admonitions in view of that event, among which are these ( verses 19-21 ): “Quench not the Spirit. Despise not prophesyings. Prove all things; hold fast that which is good.” And in verse 23 he prays that these very ones who were thus to have to do with “prophesyings” may be preserved blameless unto the coming of the Lord . PP 28.1"
"For yourselves know perfectly that the day of the Lord so cometh as a thief in the night."
EGW directly quotes 1 Thessalonians 5:2.
"Quench not the Spirit."
EGW directly quotes 1 Thessalonians 5:19.
"On the strength of these considerations are we not justified in believing that the gift of prophecy will be manifested in the church in the last days, and that through it much light will be imparted, and much timely instruction given? PP 28.2"
"But he that prophesieth speaketh unto men to edification, and exhortation, and comfort."
Both passages discuss the purpose and function of prophecy, with 1 Corinthians 14:3 describing its edifying and comforting nature, and EGW suggesting its role in providing light and instruction in the last days. While not a direct quote, the thematic connection is present.
"All things are to be treated according to the apostle's rule: “Prove all things; hold fast that which is good;” and to be tested by the Saviour's standard: “By their fruits ye shall know them.” Appealing to this standard in behalf of what claims to be a manifestation of the gift of prophecy, we commend this volume to the consideration of those who believe that the Bible is the word of God, and that the church is the body of which Christ is head. PP 28.3"
"Prove all things; hold fast that which is good."
EGW directly quotes 1 Thessalonians 5:21.
"Wherefore by their fruits ye shall know them."
EGW directly quotes Matthew 7:20.