Final answer:
The passages are from Zane Grey's novel, not from 'Ben Hur,' and showcase Venters's motivations tied to his passion for a horse named Wrangle, the love of the ride, and the need for escape and protection.
Step-by-step explanation:
Ben Hur's motivation for wanting to drive the sheik's horse is not the subject of the passages provided; rather, they seem to be from Zane Grey's novel, in which the character Venters shows a deep connection and passion for horses, particularly a horse named Wrangle.
Venters's intent to ride Wrangle, described as swift and cold-blooded, appears tied to his love for the horse, his recognition of the horse's exceptional abilities, and the intense situations he faces, such as escaping with his loved one, Bess. Such motivations intertwine with Venters's personal dilemmas, desires to protect, and the excitement of the ride itself.