If it were possible for created beings to attain to a full understanding of God and His works, then, having reached this point, there would be for them no further discovery of truth, no growth in knowledge, no further development of mind or heart. God would no longer be supreme; and man, having reached the limit of knowledge and attainment, would cease to advance. Let us thank God that it is not so. God is infinite; in Him are “all the treasures of wisdom and knowledge.” Colossians 2:3 . And to all eternity men may be ever searching, ever learning, and yet never exhaust the treasures of His wisdom, His goodness, and His power. SC 109.1 God intends that even in this life the truths of His word shall be ever unfolding to His people. There is only one way in which this knowledge can be obtained. We can attain to an understanding of God's word only through the illumination of that Spirit by which the word was given. “The things of God knoweth no man, but the Spirit of God;” “for the Spirit…
"In whom are hid all the treasures of wisdom and knowledge."
Ellen White directly references Colossians 2:3 in this passage.
"beseeching the aid of the Holy Spirit. A sense of the power and wisdom of God, and of our inability to comprehend His greatness, should inspire us with humility, and we should open His word, as we would enter His presence, with holy awe. When we come to the Bible, reason must acknowledge an authority superior to itself, and heart and intellect must bow to the great I AM. SC 109.3"
"The fear of the Lord is the beginning of wisdom: and the knowledge of the holy is understanding."
Both passages connect the fear of the Lord with wisdom and understanding. EGW expands on this by linking it to humility and approaching God's word with reverence.
"The fear of the Lord is the beginning of wisdom: a good understanding have all they that do his commandments: his praise endureth for ever."
Similar to Pair 1, this passage connects the fear of the Lord with wisdom. EGW's passage emphasizes humility and reverence when approaching God's word, which aligns with the concept of fearing the Lord.
"But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you."
While not a direct quote, the EGW passage echoes the sentiment of needing the Holy Spirit's aid to understand spiritual things, which is the core message of John 14:26. The EGW passage speaks of 'beseeching the aid of the Holy Spirit' and the John verse speaks of the Holy Spirit teaching 'all things'.