Man's first sin

Catechism of the Catholic Church - PART 1 SECTION 2 CHAPTER 1 ARTICLE 1 PARAGRAPH 7: "
397 Man, tempted by the devil, let his trust in his Creator die in his heart and, abusing his freedom, disobeyed God's command. This is what man's first sin consisted of.278 All subsequent sin would be disobedience toward God and lack of trust in his goodness. "