...for sound theology...and Sunday School.
2 Timothy 3:15-17
New International Version (NIV)
15 and how from infancy you have known the Holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus. 16 All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, 17 so that the servant of God[a] may be thoroughly equipped for every good work.
"The BIBLE" - Go Fish
Sunday school, Penderlea Homesteads, North Carolina. 1937. Library of Congress.