"Lucifer might have remained in favor with God, beloved and honored by all the angelic host, exercising his noble powers to bless others and to glorify his Maker. But, says the prophet, “Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness.” Verse 17 . Little by little, Lucifer came to indulge a desire for self-exaltation. “Thou hast set thine heart as the heart of God.” “Thou hast said, ... I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation....I will ascend above the heights of the clouds; I will be like the Most High.” Verse 6 ; Isaiah 14:13, 14 . Instead of seeking to make God supreme in the affections and allegiance of His creatures, it was Lucifer's endeavor to win their service and homage to himself. And coveting the honor which the infinite Father had bestowed upon His Son, this prince of angels aspired to power which it was the prerogative of Christ alone to wield. GC 494.1"
"For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north:"
EGW directly quotes Isaiah 14:13 to illustrate Lucifer's desire for self-exaltation. This is a clear and explicit allusion.
"Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness: I will cast thee to the ground, I will lay thee before kings, that they may behold thee."
EGW directly quotes Ezekiel 28:17.
"Lucifer allowed jealousy of Christ to prevail, and he became the more determined. GC 494.2"
"Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it."
Both passages describe the devil's nature as being rooted in lies and malice. EGW's statement about Lucifer's jealousy leading to determination aligns with John 8:44's description of the devil's inherent evil.