דברי הימים ב, פרק י״ז, פסוק ט׳

A massive educational campaign swept across the kingdom, designed to bring spiritual knowledge directly to the people. Teachers traveled systematically through all the cities of Judah, moving from town to town to ensure every community received proper instruction [ביאור שטיינזלץ]. As they journeyed, they physically carried the Book of the Law of God with them, using it to anchor an organized spread of Torah knowledge throughout the land [מצודת דוד].

This widespread effort was highly tailored to the needs of different audiences, utilizing a two-tiered educational approach [חומת אנך]. For individuals who already possessed prior understanding, the instructors taught the Oral Law, focusing on detailed laws and practical rulings. Conversely, for the general public, the teachers focused on the Written Law. By teaching directly from the physical book they carried, they made the foundational texts completely accessible to the everyday masses.

Educating every segment of society by combining both the Written and Oral Law created a profound spiritual power. This unified merit of teaching the entire nation invites immense divine assistance, securing God's protection and providing salvation from all forms of trouble [חומת אנך].