preach to the choir

Verb

 * 1)  To speak as if to convince a person or group of something they already believe.

Usage notes

 * Often used to imply that a speaker is addressing the wrong audience or is deliberately addressing a complaint to an already sympathetic audience.

Translations

 * Chinese:
 * Mandarin:
 * Dutch: een open deur intrappen
 * Finnish: puhua uskovaisille
 * French: ,
 * German: offene Türen einrennen
 * Hungarian:
 * Italian: sfondare una porta aperta
 * Japanese:
 * Norwegian:
 * Bokmål:
 * Polish:
 * Portuguese: pregar aos convertidos
 * Russian:
 * Spanish: hablar a Noé de lluvia
 * Swedish: predika för de redan frälsta,
 * Thai: