Those who are inclined to regard their individual judgment as supreme, are in grave peril. It is Satan's studied effort to separate such ones from those who are channels of light, through whom God has wrought to build up and extend His work in the earth. To neglect or despise those whom God has appointed to bear the responsibilities of leadership in connection with the advancement of the truth, is to reject the means that He has ordained for the help, encouragement, and strength of His people. For any worker in the Lord's cause to pass these by, and to think that his light must come through no other channel than directly from God, is to place himself in a position where he is liable to be deceived by the enemy, and overthrown. The Lord in His wisdom has arranged that by means of the close relationship that should be maintained by all believers, Christian shall be united to Christian, and church to church. Thus the human instrumentality will be enabled to co-operate with the divine. Eve…
"Trust in the Lord with all thine heart; and lean not unto thine own understanding."
The EGW passage strongly reinforces the principle of not relying solely on one's own understanding, mirroring Proverbs 3:5. It expands on this by detailing the risks of isolating oneself from the guidance of others and the importance of unity within the church.