In vision Ellen White was taken to the scene of the Battle of Manassas; she was shown God's hand in what took place there: WV 87.5
I had a view of the disastrous battle at Manassas, Virginia. It was a most exciting, distressing scene. The Southern army had everything in their favor and were prepared for a dreadful contest. The Northern army was moving on with triumph, not doubting but that they would be victorious. Many were reckless and marched forward boastingly, as though victory were already theirs. WV 87.6
As they neared the battlefield, many were almost fainting through weariness and want of refreshment. They did not expect so fierce an encounter. They rushed into battle and fought bravely, desperately. The dead and dying were on every side. Both the North and the South suffered severely. The Southern men felt the battle, and in a little while would have been driven back still further. The Northern men were rushing on, although their destruction was very great. WV 87.7
Just then an angel descended and waved his hand backward. Instantly there was confusion in the ranks. It appeared to the Northern men that their troops were retreating, when it was not so in reality, and a precipitate retreat commenced. This seemed wonderful to me. WV 87.8
Then it was explained that God had this nation in His own hand, and would not suffer victories to be gained faster than He ordained, and would permit no more losses to the Northern men than in His wisdom He saw fit, to punish them for their sins. And had the Northern army at this time pushed the battle still further in their fainting, exhausted condition, the far greater struggle and destruction which awaited them would have caused great triumph in the South. WV 87.9
God would not permit this, and sent an angel to interfere. The sudden falling back of the Northern troops is a mystery to all. They know not that God's hand was in the matter (Ibid., 1:266, 267). WV 88.1
Thus was revealed God's guiding hand in the affairs of the war. WV 88.2