Proverbs 18 17
The first person to plead a case sounds right until someone comes to cross-examine them.
Compare with other 3 random translations
EAS Proverbs 18:17You will always believe the first person to speak in court, until the other person starts to ask him questions.
ERV Proverbs 18:17The first person to speak always seems right until someone comes and asks the right questions.
WEB Proverbs 18:17He who pleads his cause first seems right— until another comes and questions him.