Meaning of 礼節 in Japanese

Definition of 礼節

れいせつ(reisetsu) 【礼節】

いしょくたりてれいせつをしる(ishokutaritereisetsuwoshiru) 【衣食足りて礼節を知る】

(exp) the poor can't afford manners; only when basic needs for living are met can people spare the effort to be polite

いかにも敬虔けいけんなるクリスチャンが送るおくる、礼節れいせつ重きおもき言葉です。

So characteristic of what a pious Christian would say, this courteous phrase.

恩人おんじんに礼節れいせつを欠いてはなりませんよ。

You must not lack decorum dealing with your benefactors.