Mary became pregnant with Jesus after she was engaged to Joseph. Imagine how Joseph must have felt when he learned his fiancee was pregnant, not knowing who the father was. Anger, bitterness, and betrayal had to have been stirring in his heart. He was justified to publicly stone her for her actions. Yet, being the man he was, he chose to quietly walk away. Fortunately, an angel stepped in and set him straight about the Father. When you feel anger, bitterness, betrayal and have every right to retaliate, how can you extend grace and mercy to your circumstances?
Joseph, her fiance, was a good man and did not want to disgrace her publicly, so he decided to break the engagement quietly.
~ Matthew 1:19 [NLT]