‘There is also the aspect of wisdom in debbate or defense. When our Lord was foretelling the persecution which awaited His disciples He promised, “For I will give you a mouth and wisdom, which all your adverseries shall not be able to gainsay nor resist.” “And when they bring you into the synagogues and unto magistrates, and powers, take ye no thought how or what thing ye shall answer, or what ye shall say: for the Holy Ghost shall teach you in the same hour what ye ought to say.” Luke 21:15; 12:11, 12. This is the same gift for just such an occasion was manifest perfectly when Christ’s adversaries tried to tangle Him in His talk as they asked Him, “Is it lawful to pay tribute to Caesar?” The wisdom of His reply was so complete and His defense so devastating that they marveked at His answer and held their peace. Luke 20:20-26. Stephen’s defense before the court of the High Priest was unanswerable and all his enemies could do was to gnash their teeth and stone him. Acts 7.’
Source: Ralph M. Riggs, The Spirit Himself (1949), Chapter 16: The Word of Wisdom, p. 132.