"Christ is pleased with His followers when they show that, though human, they are partakers of the divine nature. They are not statues, but living men and women. Their hearts, refreshed by the dews of divine grace, open and expand to the Sun of Righteousness. The light that shines upon them they reflect upon others in works that are luminous with the love of Christ. DA 153.1"
"Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust."
The EGW passage explicitly mentions 'partakers of the divine nature,' which is a direct reference to 2 Peter 1:4. The surrounding context in EGW further elaborates on the implications of this participation.
"Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven."
The EGW passage describes Christians reflecting the light of Christ through their actions, which directly parallels Matthew 5:16, where believers are called to let their light shine through good works to glorify God.