"***** A True Representation The Son of God came to this earth to reveal the character of the Father to men, that they might learn to worship Him in spirit and in truth. He came to sow the world with truth. He held the keys of all the treasures of wisdom, and was able to open doors to science, and to reveal undiscovered stores of knowledge, were it essential to salvation. The Light that lighteth every man that cometh into the world, every phase of truth was evident to Him. CT 28"
"Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father?"
Both passages emphasize Jesus revealing the Father. John 14:9 is a direct statement of Jesus's revelation of the Father, while the EGW passage explains the purpose of Jesus's coming as revealing the Father's character.
"But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him."
Both passages connect to the idea of worshipping God in spirit and in truth. The EGW passage states that Jesus came so that people might learn to worship God in spirit and in truth, while John 4:23 speaks of the coming hour when true worshippers will worship the Father in spirit and in truth.
"Heaven, looking down and seeing the delusions into which men were led, knew that a divine Instructor must come to the earth. Through the misrepresentations of the enemy, many were so deceived that they worshiped a false god, clothed with the attributes of the satanic character. Those in ignorance and moral darkness must have light, spiritual light; for the world knew not God, and He must be revealed to their understanding. Truth looked down from heaven and saw not the reflection of her image; for dense clouds of spiritual darkness and gloom enveloped the world. The Lord Jesus alone was able to roll back the clouds; for He is the light of the world. By His presence He could dissipate the gloomy shadow that Satan had cast between man and God.—First published November 17, 1891. CT 28.1"
"That was the true Light, which lighteth every man that cometh into the world."
Both passages discuss the concept of light coming into the world to dispel darkness and reveal God. John 1:9 refers to Jesus as the true light, while EGW describes Jesus as the one who can dissipate the spiritual darkness. The thematic parallel is evident.