Tom Robinson is a figure who exemplifies many of the Beatitudes from the Bible (Matthew 5: 3-12 and Luke 6:20-22): He is meek; he is merciful; he is pure in heart; he tries to be a peacemaker.
Tom Robinson demonstrates that he is meek when he is on the witness stand, where he endures cruelty and injury with patience. Despite the innuendos and insults hurled at him by Bob and Mayella Ewell before the court, Tom does not speak disparagingly about them. For instance, Tom is reluctant to accuse Mayella of lying; he simply says that she is "mistaken in her mind." Earlier in his testimony he states that he tried to resist Mayella's advances: "I didn't wanta be ugly, I didn't wanta push her or nothin'." Later, when Mr. Gilmer is insulting in his interrogation of Tom, Tom remains polite and responds to the questions in a respectful manner by addressing Mr. Gilmer as "suh" (sir).
Tom is, indeed, merciful. Despite being brought to trial on false charges and facing dangerous consequences, he holds no grudges against the Ewells. In fact, he says that he feels sorry for Mayella.
Certainly, Tom is pure in heart. He says that he thought that Mayella needed help; he never suspected her of other motives for having him come into her yard and house.
Tom tries to be a peacemaker as he is always humble, speaking respectfully at all times. In fact, Link Deas tries to tell the court about Tom's good and peaceful character when he says that Tom has never given him any trouble.