言うのは簡単だ

it's easy to say

→ 言う
phrase Rare #43,140
it's easy to say Often used to contrast saying something with actually doing it.
JA: そんなことを言うのは簡単だ。
EN: It's easy to say something like that.

口で言うのは簡単だ。

It's easy to say.

言うのは簡単だ

That's easy to say.

— シティ・オブ・ゴッド (2002)

言うのは簡単だ!

That's easier said than done!

— ピエロがお前を嘲笑う (2014)

言うのは簡単だが実行は難しい

Easier said than done.

— きっと、うまくいく (2009)