信しんを問とう

expression, godan verb (-u, special)

appeal to someone's trust; question someone's credibility

A formal, somewhat literary expression used when challenging or testing whether someone is trustworthy, often in political or ethical contexts.

• 彼かれの行こう動どうは、我われ々われの信しんを問とうものだ。

  His actions call our trust into question.

• リーダーは国こく民みんの信しんを問とうために選せん挙きょに踏ふみ切きった。

  The leader called an election to test the people's confidence.