mature Christian. Hebrews 5:12–14 teaches that to become mature Christians with spiritual discernment and ability to make right moral decisions requires time and training in the Word. A person has no Christian spirituality until he becomes a child of God through faith in Christ (Gal. 3:26). Each Christian experiences spirituality to some degree,8 but Scripture designates only some Christians as “spiritual.”9 Christians become spiritual through sufficient progress in sanctification toward Christlike