Translation

善を行う / 慈善的な / 人のためになる行いをする

Meaning

Beneficent means actively doing good, helping others, or producing a kind and generous effect. It is often used for people, organizations, actions, or intentions. Do not confuse it with beneficial, which simply means useful or producing a good result.

Examples

• その財団は地域の病院を支援する慈善的な活動で知られています。
  The foundation is known for its beneficent work supporting local hospitals.
• 彼の動機は支配ではなく、人を助けようとする善意でした。
  His motive was beneficent, not controlling.