See EGW comment on Judges 7:7, 16-18.

 Would those who today profess to be God’s people conduct themselves thus, under similar circumstances? Doubtless many would wish to follow out their own plans, would suggest ways and means of accomplishing the desired end. They would be loth to submit to so simple an arrangement, and one that reflected no glory upon themselves, save the merit of obedience. They would also question the possibility of conquering a mighty city in that manner. But the law of duty is supreme. It should wield authority over human reason. Faith is the living power that presses through every barrier, overrides all obstacles, and plants its banner in the heart of the enemy’s camp (The Signs of the Times, April 14, 1881).

 There are deep mysteries in the Word of God, there are mysteries in His providences, and there are mysteries in the plan of salvation, that man cannot fathom. But the finite mind, strong in its desire to satisfy curiosity, and solve the problems of infinity, neglects to follow the plain course indicated by the revealed will of God, and pries into the secrets hidden since the foundation of the world. Man builds his theories, loses the simplicity of true faith, becomes too self-important to believe the declarations of the Lord, and hedges himself in with his own conceits.
 Many who profess to be children of God are in this position. They are weak because they trust to their own strength. God works mightily for a faithful people, who obey His Word without questioning or doubt. The Majesty of heaven, with His army of angels, leveled the walls of Jericho before His people. The armed warriors of Israel had no cause to glory in their achievements. All was done through the power of God. Let the people give up all desire for self-exaltation, let them humbly submit to the divine will, and God will again manifest His power, and bring freedom and victory to His children (The Signs of the Times, April 14, 1881).