Final answer:
The statement about friars using Scripture for personal gain likely refers to Reformation-era critiques and is considered to be true based on historical context.
Step-by-step explanation:
The statement that friars were explaining Holy Scripture in a way that would profit themselves refers to the criticism of the Church hierarchy during the time of the Protestant Reformation. Martin Luther, among others, argued that Church officials, including friars and other clergy, used their authority and interpretation of the Scriptures to their advantage, particularly through the sale of indulgences and the claim of exclusive right to interpret scriptural texts. The academic though and criticism of Church practices from historical documents and theological debates of the era support the idea that this statement is likely true.