Genesis 2: 7-9, 3: 1-7
Adam and Eve allow their own desires to take precedence over God’s command and so introduce sin into their lives. 

Romans 5: 12-19
Paul explains how sin has become endemic in the human race, and how Jesus came to reverse its effects. 

Matthew 4: 1-11
Jesus spends time in the desert preparing for his ministry, and comes face to face with powerful temptations to put his own interests first.