This book is a collection drawn from over three hundred and ninety of my magazine and website articles synthesizing early and modern Christianity, extracted from writings by or about Christians who flourished prior to the Decian Persecution and mass apostasy of AD 249-251. The subject matter is New Testament and other Christian statements on ethics before AD 250, and their applicability to the twenty-first century. Some of these articles have been published more than once, by more than one Christian communion, and in more than one country. They vary in length from a few hundred words to over four thousand. This book does not discuss moral theories or frameworks, but presents concrete practice of specific principles, commandments, and prohibitions.