"The 2007 Sunday School Teachers' Training" was held June 26-28, 2007, in the Sixth Sanctuary at Manmin Joong-ang Church under the theme, "For Sanctification" (1 Thessalonians 5:23). After listening to lectures titled, "The Heart of the Shepherd," "Paying Spiritual Visits," "The Spiritual World," "Bible Study," and "Being Equipped with the Word," the teachers vowed to lead their students with the heart of Our Lord.