Theophylact of Ohrid
Catena Aurea · Lukasevangelium 21
But before all these, they shall lay their hands on you, and persecute you, delivering you up to the synagogues, and into prisons, being brought before kings and rulers for my name’s sake. And it shall turn to you for a testimony. Settle it therefore in your hearts, not to meditate before what ye shall answer: For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist. And ye shall be betrayed both by parents, and brethren, and kinsfolks, and friends; and some of you shall they cause to be put to death. And ye shall be hated of all men for my name’s sake. But there shall not an hair of your head perish. In your patience possess ye your souls. It follows, And it shall turn to you for a testimony. In the Greek it is εἰς μαρτύριον, that is, for the glory of martyrdom.
For because they were foolish and inexperienced, the Lord tells them this, that they might not be confounded when about to give account to the wise. And He adds the cause, For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay or resist. As if He said, Ye shall forthwith receive of me eloquence and wisdom, so that all your adversaries, were they gathered together in one, shall not be able to resist you, neither in wisdom, that is, the power of the understanding, nor in eloquence, that is, excellence of speech, for many men have often wisdom in their mind, but being easily provoked to their great disturbance, mar the whole when their time of speaking comes, But not such were the Apostles, for in both these gifts they were highly favoured.