The second coming of our Lord Jesus Christ is a personal bodily reappearance of the glorified Lord at the very end of all things. That return is pictured here in our text in striking symbolism. The Lord Jesus Christ Himself is pictured as one coming arrayed for war and one coming for judgment.
First of all, notice that in Revelation 19:11 He is seated upon a white horse. The horse was the preeminent animal upon which a captain would lead his army into war and battle. Consider the description of the horse in Job 39:1–30, where God is confronting Job:
Hast thou given the horse strength? hast thou clothed his neck with thunder? Canst thou make him afraid as a grasshopper? the glory of his nostrils is terrible. He paweth in the valley, and rejoiceth in his strength: he goeth on to meet the armed men. He mocketh at fear, and is not affrighted; neither turneth he back from the sword. Job 39:19–22, KJV
Upon that warrior animal, that warrior beast, the Lord Jesus Christ returns. A white horse. He enters into history this time not riding upon the colt of a donkey, meek and lowly, but riding now the great white steed arrayed for battle. The fact that this horse is white indicates that He comes in victory. The Roman generals who returned from victorious battles would be paraded through the streets of Rome upon a white horse, indicating that they had been victorious. Strikingly, the Lord Jesus Christ here goes into battle upon a white horse, for the outcome of the battle that He will fight is not in question. He comes in victory – a victory decreed from before the foundations of the earth!1
Cory Griess
11 Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war.