"Christ the Fountainhead of True Knowledge We must turn away from a thousand topics that invite attention. There are matters that consume time and arouse inquiry, but end in nothing. The highest interests demand the close attention and energy that are so often given to comparatively insignificant things. MH 456"
"Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ,"
Both passages emphasize the importance of prioritizing the knowledge of Christ above other things. The EGW passage speaks of turning away from insignificant topics, while Philippians 3:8 speaks of counting all things as loss for the excellency of the knowledge of Christ. The connection is thematic and relevant.
"“Incline thine ear unto wisdom, ... Apply thy heart to understanding; ... Seek her as silver, ... Search for her as for hid treasures: Then shalt thou understand the fear of Jehovah, And find the knowledge of God.... Then shalt thou understand righteousness and justice, And equity, yea, every good path. For wisdom shall enter into thy heart, And knowledge shall be pleasant unto thy soul; Discretion shall watch over thee; Understanding shall keep thee.” Wisdom “is a tree of life to them that lay hold upon her: And happy is everyone that retaineth her.” Proverbs 2:2-11 , A.R.V.; 3:18 . MH 456.3"
"So that thou incline thine ear unto wisdom, and apply thine heart to understanding; Yea, if thou criest after knowledge, and liftest up thy voice for understanding; If thou seekest her as silver, and searchest for her as for hid treasures; Then shalt thou understand the fear of the Lord, and find the knowledge of God. For the Lord giveth wisdom: out of his mouth cometh knowledge and understanding. He layeth up sound wisdom for the righteous: he is a buckler to them that walk uprightly. He keepeth the paths of judgment, and preserveth the way of his saints. Then shalt thou understand righteousness, and judgment, and equity; yea, every good path. When wisdom entereth into thine heart, and knowledge is pleasant unto thy soul; Discretion shall preserve thee, understanding shall keep thee:"
Ellen White directly references Proverbs 2:2-11 in this passage.