What conditions make the reading and hearing of the word effectual to salvation?

The correct choice emphasizes that for the reading and hearing of the Word to be effectual to salvation, one must approach it with diligence, preparation, prayer, and practice. This understanding aligns with the principle that engaging with God's Word is not merely a passive activity but requires an earnest and active effort.

Diligence in this context refers to the focused and intentional effort to understand the Scripture, while preparation highlights the necessity of being spiritually and mentally ready to receive its teachings. Prayer is crucial as it invites divine assistance to comprehend and apply God's Word effectively. Practice suggests that one must not only understand the Scripture but also apply its teachings in their life, reinforcing the transformative nature of Scripture when approached correctly.

Having a more casual or inattentive approach, or only focusing on faith without the accompanying actions of preparation and prayer, fails to acknowledge the holistic engagement required when interacting with the Word. Moreover, the concept of hearing Scripture exclusively in group settings does not encompass the personal responsibility each individual has when it comes to engaging with the Word of God in a way that leads to salvation. Hence, the comprehensive approach outlined in the correct choice encapsulates the necessary conditions for the Word to have a genuine impact on an individual's salvation.