What he discerned through his study of “the books ” ​ — possibly including Leviticus, Isaiah, Jeremiah, Hosea, and Amos — ​ moved him to seek Jehovah in fervent prayer.
وَٱلتَّقَدُّمُ فِي ٱلْعُمْرِ لَا يُعِيقُ بِٱلضَّرُورَةِ تَعَلُّمَ مَفَاهِيمَ جَدِيدَةٍ وَصَعْبَةٍ .‏