ISBN-13: 9781584271246 / Angielski / Miękka / 2014 / 62 str.
This series of lessons is designed to help Christians address sins of the heart with lessons on sinful anger, pride, envy and jealousy, lust, greed, deceit, ingratitude, bitterness, selfishness, anxiety, irreverence, lack of brotherly love, and self-control. The lessons have questions designed to stimulate in-class discussion. The material is useful for both senior high students and adults.