"The Trustees of the Ellen G. White Publications. Chapter 1—Teaching in Parables In Christ's parable teaching the same principle is seen as in His own mission to the world. That we might become acquainted with His divine character and life, Christ took our nature and dwelt among us. Divinity was revealed in humanity; the invisible glory in the visible human form. Men could learn of the unknown through the known; heavenly things were revealed through the earthly; God was made manifest in the likeness of men. So it was in Christ's teaching: the unknown was illustrated by the known; divine truths by earthly things with which the people were most familiar. COL 17"
"And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth."
Both passages discuss the incarnation, where the divine is revealed through the human. EGW expands on the idea of Christ taking our nature to reveal God's character, echoing the sentiment in John 1:14 that the Word became flesh and dwelt among us.
"All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them: That it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables; I will utter things which have been kept secret from the foundation of the world."
Both passages discuss Christ's use of parables. While EGW doesn't directly quote Matthew 13:34-35 in the initial paragraph, the theme of Christ teaching in parables to reveal hidden truths is present in both.
"The Scripture says, “All these things spake Jesus unto the multitude in parables; ... that it might be fulfilled which was spoken by the prophet, saying, I will open My mouth in parables; I will utter things which have been kept secret from the foundation of the world.” Matthew 13:34, 35 . Natural things were the medium for the spiritual; the things of nature and the life-experience of His hearers were connected with the truths of the written word. Leading thus from the natural to the spiritual kingdom, Christ's parables are links in the chain of truth that unites man with God, and earth with heaven. COL 17.2"
"All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them:"
EGW directly quotes Matthew 13:34.
"That it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables; I will utter things which have been kept secret from the foundation of the world."
EGW directly quotes Matthew 13:35.