言う事を

what … says

→ 言う
phrase Uncommon #8,850
what … says Usually followed by a verb. In 言う事を聞く, it means to listen to or obey what someone says.
JA: 先生の言う事を聞いてください。
EN: Please listen to what the teacher says.

私がこれから言う事を、よく聞きなさい。

Listen carefully to what I’m about to tell you.

あなたが正直だと思う人の言う事を聞きなさい。

Listen to what people you consider honest say.

彼女は親の言う事を良く聞く。

She listens to her parents.

僕の言う事を良く聞いてくれ。

Listen carefully to what I have to say.

私は彼の言う事を注意深く聞こうと努めた。

I tried to listen carefully to what he was saying.