"The Third Message Closed I was pointed down to the time when the third angel's message was closing. The power of God had rested upon His people; they had accomplished their work and were prepared for the trying hour before them. They had received the latter rain, or refreshing from the presence of the Lord, and the living testimony had been revived. The last great warning had sounded everywhere, and it had stirred up and enraged the inhabitants of the earth who would not receive the message. EW 279"
"And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand,"
The EGW passage describes the closing of the third angel's message, the latter rain, and the final warning, which directly relates to the content and impact of the third angel's message in Revelation 14:9. The EGW passage elaborates on the effects of the third angel's message.
"His hands, and with a loud voice said, “ It is done. ” And all the angelic host laid off their crowns as Jesus made the solemn declaration, “He that is unjust, let him be unjust still: and he which is filthy, let him be filthy still: and he that is righteous, let him be righteous still: and he that is holy, let him be holy still.” EW 279.2"
"He that is unjust, let him be unjust still: and he which is filthy, let him be filthy still: and he that is righteous, let him be righteous still: and he that is holy, let him be holy still."
The EGW passage directly quotes Revelation 22:11, making it a clear and explicit allusion.