New International Version
not to many peoples of obscure speech and strange language, whose words you cannot understand. Surely if I had sent you to them, they would have listened to you.

American Standard Version
not to many peoples of a strange speech and of a hard language, whose words thou canst not understand. Surely, if I sent thee to them, they would hearken unto thee.

Berean Study Bible
not to the many peoples of unfamiliar speech and difficult language whose words you cannot understand. Surely if I had sent you to them, they would have listened to you.

Douay-Rheims Bible
Nor to many nations of a strange speech, and of an unknown tongue, whose words thou canst not understand: and if thou wert sent to them, they would hearken to thee.

English Revised Version
not to many peoples of a strange speech and of an hard language, whose words thou canst not understand. Surely, if I sent thee to them, they would hearken unto thee.

King James Bible
Not to many people of a strange speech and of an hard language, whose words thou canst not understand. Surely, had I sent thee to them, they would have hearkened unto thee.

World English Bible
not to many peoples of a strange speech and of a hard language, whose words you can not understand. Surely, if I sent you to them, they would listen to you.

Young's Literal Translation
not unto many peoples, deep of lip and heavy of tongue, whose words thou dost not understand. If I had not sent thee unto them -- they, they do hearken unto thee,

Ezekiel 3:6 Additional Translations ...