"Never before have the angels listened to such a prayer. They are eager to bear to their loved Commander a message of assurance and comfort. But no; the Father Himself will answer the petition of His Son. Direct from the throne issue the beams of His glory. The heavens are opened, and upon the Saviour's head descends a dovelike form of purest light,—fit emblem of Him, the meek and lowly One. DA 112.1"
"And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:"
Both passages describe the heavens opening and a dove-like form descending upon Jesus. The EGW passage elaborates on the significance of the event, but the core imagery is directly related to Matthew 3:16.
"Of the vast throng at the Jordan, few except John discerned the heavenly vision. Yet the solemnity of the divine Presence rested upon the assembly. The people stood silently gazing upon Christ. His form was bathed in the light that ever surrounds the throne of God. His upturned face was glorified as they had never before seen the face of man. From the open heavens a voice was heard saying, “This is My beloved Son, in whom I am well pleased.” DA 112.2"
"And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased."
The EGW passage directly quotes and references Matthew 3:17, making it an explicit allusion.
"These words of confirmation were given to inspire faith in those who witnessed the scene, and to strengthen the Saviour for His mission. Notwithstanding that the sins of a guilty world were laid upon Christ, notwithstanding the humiliation of taking upon Himself our fallen nature, the voice from heaven declared Him to be the Son of the Eternal. DA 112.3"
"All we like sheep have gone astray; we have turned every one to his own way; and the Lord hath laid on him the iniquity of us all."
Both passages discuss the burden of sin being placed on Christ. The EGW passage connects this to the voice from heaven affirming Jesus' identity, while Isaiah 53:6 describes the act of God laying iniquity on him. The connection is thematic and supports the idea of Christ bearing the sins of the world.
"The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world."
The EGW passage directly quotes the phrase "away the sin of the world" from John 1:29, making it a clear explicit allusion.
"He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth."
Both passages relate to the sacrificial nature of Jesus. While the EGW passage quotes John 1:29, the connection to Isaiah 53:7 is thematic, drawing a parallel between the lamb led to slaughter and Jesus' sacrifice.
"None among the hearers, and not even the speaker himself, discerned the import of these words, “the Lamb of God.” Upon Mount Moriah, Abraham had heard the question of his son, “My father, ... where is the lamb for a burnt offering?” The father answered, “My son, God will provide Himself a lamb for a burnt offering.” Genesis 22:7, 8 . And in the ram divinely provided in the place of Isaac, Abraham saw a symbol of Him who was to die for the sins of men. The Holy Spirit through Isaiah, taking up the illustration, prophesied of the Saviour, “He is brought as a lamb to the slaughter,” “and the Lord hath laid on Him the iniquity of us all” ( Isaiah 53:7, 6 ); but the people of Israel had not understood the lesson. Many of them regarded the sacrificial offerings much as the heathen looked upon their sacrifices,—as gifts by which they themselves might propitiate the Deity. God desired to teach them that from His own love comes the gift which reconciles them to Himself. DA 112.5"
"The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world."
The EGW passage directly references and explains John 1:29, making it an explicit allusion. It also connects it to other relevant scriptures.
"And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together."
EGW directly quotes and interprets Genesis 22:8 in the context of Christ's sacrifice.
"He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth."
EGW directly quotes and interprets Isaiah 53:7 in the context of Christ's sacrifice.