"Those who study the Bible, counsel with God, and rely upon Christ will be enabled to act wisely at all times and under all circumstances. Good principles will be illustrated in actual life. Only let the truth for this time be cordially received and become the basis of character, and it will produce steadfastness of purpose, which the allurements of pleasure, the fickleness of custom, the contempt of the world-loving, and the heart's own clamors for self-indulgence are powerless to influence. Conscience must be first enlightened, the will must be brought into subjection. The love of truth and righteousness must reign in the soul, and a character will appear which heaven can approve. 5T 43.1"
"Trust in the Lord with all thine heart; and lean not unto thine own understanding. In all thy ways acknowledge him, and he shall direct thy paths."
Both passages highlight the importance of trusting in God and seeking His guidance rather than relying on one's own understanding. The EGW passage expands on the practical implications of this principle.
"But his delight is in the law of the Lord; and in his law doth he meditate day and night."
Both passages emphasize the importance of studying God's word (Bible/law of the Lord) for guidance and righteous living.