Luke 21:15

15 for I myself will give you an eloquence and a wisdom that no adversary will be able to resist or refute.

Luke 21:15 Meaning and Commentary

Luke 21:15

For I will give you a mouth
A faculty of speaking, a freedom of expression, a door of utterance, a good degree of elocution, to speak properly, pertinently and freely to any point: and wisdom;
to answer with great propriety, and in the most prudent manner, to any difficult and ensnaring question; and to furnish with such knowledge of the Gospel, and with such gifts and abilities to preach and defend it, that they should be able to give a clear and distinct account of it, and prove every point in it, by the most strong and convincing arguments, and vindicate it against all objections: which all your adversaries shall not be able to gainsay or resist.
This was remarkably fulfilled in Peter, and John, and in Stephen, ( Acts 4:13 Acts 4:14 ) ( 6:10 ) . The first word, "gainsay", is left out in the Syriac and Persic versions.

Luke 21:15 In-Context

13 but it will prove an opportunity for you to bear witness.
14 So make up your minds not to worry, rehearsing your defense beforehand;
15 for I myself will give you an eloquence and a wisdom that no adversary will be able to resist or refute.
16 You will be betrayed even by parents, brothers, relatives and friends; some of you they will have put to death;
17 and every one will hate you because of me.
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.