New Revised Standard Version
For you are not sent to a people of obscure speech and difficult language, but to the house of Israel—

New American Bible
Not to a people with obscure speech and difficult language am I sending you, but to the house of Israel.

Douay-Rheims Bible
For thou art not sent to a people of a profound speech, and of an unknown tongue, but to the house of Israel:

For thou art not sent to a people of a profound speech, and of an unknown tongue, but to the house of Israel:

thou

Jonah 1:2 Now the word of the Lord came to Jonah, the son of Amathi, saying:

Jonah 3:2-4 And the word of the Lord came to Jonah the second time saying: . . .

Acts 26:17,18 Delivering thee from the people and from the nations unto which now I send thee: . . .

and so

Ezekiel 3:6 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.

Psalm 81:5 He ordained it for a testimony in Joseph, when he came out of the land of Egypt: he heard a tongue which he knew not.

Isaiah 33:19 The shameless people thou shalt not see, the people of profound speech: so that thou canst not understand the eloquence of his tongue, in whom there is no wisdom.