croire sur parole

take someone's word for it

→ croire
phrase Rare #25,486
take someone's word for it Used when you trust what someone says without asking for proof. The expression is often used with the verb croire in the form croire quelqu'un sur parole.
FR: Je vais devoir te croire sur parole, mais je préfère vérifier ensuite.
EN: I'm going to have to take your word for it, but I'd rather check afterward.

Tu devrais la croire sur parole parce que je ne l'ai jamais vue mentir.

You should take her word for it because I’ve never seen her lie.

Je vais devoir te croire sur parole.

I'll have to take your word for it.

Vous devriez la croire sur parole parce que je ne l'ai jamais vue mentir.

You should take her word for it because I’ve never seen her lie.

Et pourquoi diable est-ce que je devrais vous croire sur parole?

And why on earth should I take your word for it?

— Insaisissables 2 (2016)

Il suffit de me croire sur parole.

Just take my word for it.

Je ne peux pas le prouver, tu devras me croire sur parole.

I can't prove it; you'll just have to take my word for it.

Je vais devoir vous croire sur parole.

I'll have to take your word for it.