New King James Version
for I will give you a mouth and wisdom which all your adversaries will not be able to contradict or resist.

King James Bible
For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist.

American Standard Version
for I will give you a mouth and wisdom, which all your adversaries shall not be able to withstand or to gainsay.

Berean Study Bible
For I will give you speech and wisdom that none of your adversaries will be able to resist or contradict.

Douay-Rheims Bible
For I will give you a mouth and wisdom, which all your adversaries shall not be able to resist and gainsay.

English Revised Version
for I will give you a mouth and wisdom, which all your adversaries shall not be able to withstand or to gainsay.

World English Bible
for I will give you a mouth and wisdom which all your adversaries will not be able to withstand or to contradict.

Young's Literal Translation
for I will give to you a mouth and wisdom that all your opposers shall not be able to refute or resist.

Luke 21:15 Additional Translations ...