Meaning of “Be not overcome of evil, but overcome evil…”

Othello, Act I, Scene III, reviewed against the scan-backed 1910 First Folio facsimile on Wikisource. The Duke tells Brabantio that continuing to spend grief on an irreversible loss only compounds it; the retained modernized wording corresponds to the Folio's 'The rob'd that smiles, steales something from the Thiefe.' It is dramatic counsel inside the scene, not Shakespeare autobiography or clinical grief guidance.

Matthew 5:9, King James Version.

John 13:34, King James Version.

Lilith: A Romance; Project Gutenberg #1640. Mr. Raven speaks the line within MacDonald’s symbolic Christian fantasy, so it remains fictional and theological in context.

A Christmas Carol; Tiny Tim’s blessing.

As You Like It, Act II, Scene 1, Duke Senior; 1919 Yale Shakespeare edition edited by Jack R. Crawford, printed page 24 / Wikisource scan leaf 36. “Sweet are the uses of adversity” occurs in Duke Senior’s Forest of Arden reflection on exile, winter and the lessons he claims to find outside court life. It remains fictional dramatic speech rather than Shakespeare’s autobiographical advice or a modern psychological claim about hardship.