Character development is the whole point of our Christian walk. The responsibility of the 144,000 on Paradise Earth, as Christ’s body members, will be to be earths Kings (Rev 1:6 ) , Priests (Rev 20:6) and Judges (1 Cor 6:2). Jehovah will only give that power and responsibility to those who have developed a Christ-like character. Rom 12:2 says ” And quit being fashioned after this system of things, but be transformed by making YOUR mind over” NWT. Gal 5:22, 23 says, “…the fruitage of the spirit is love, joy, peace, long-suffering, kindness, goodness, faith, mildness, self-control” NWT. In the 442 page book, “Character Development,” Pastor Russell gives advice from the Bible on how to develop faith, humility, knowledge, self-control, patience, love, brotherly love, prayer and avoiding evil-speaking.