When the LAMB broke the "First Seal," the first, or "Lion-like Living Creature" cried with a voice of thunder--"COME." The words "and see" are omitted in many manuscripts, and in the Revised Version. John had no need to "come" for he was already there. The command then of "Come" was to the "Rider" of the White Horse. When he appeared, John says--"And I saw, and behold a WHITE HORSE; and he that sat on him had a bow; and a crown was given unto him: and he went forth conquering, and to conquer."

Who is the "Rider" upon this White Horse? He is not Christ, as some claim, for Christ, as the LAMB, is holding the "Seven Sealed Book" and breaking its "Seals." Christ does not appear as a White Horse Rider until chapter 19:11-16, when He comes with the armies of Heaven to engage in the Battle of Armageddon. Then He is called "Faithful and True," and on His head there is a many "Diademed Crown," and He is clothed in a vesture dipped in blood, and His name is called the "WORD OF GOD," and there is no weapon of warfare in His hand, but a sharp sword comes out of His mouth, and the effect upon His enemies will he swift and terrible.

Taken from a search... the writer errors

There are some key points here though