Jesus when expressing the signs of His coming describes that in addition to natural disasters and man made wars, those who are faithful will be physically persecuted and imprisoned before principalities (kings and rulers) for His name sake (Luke 21:12). But why should the faithful be put into fiery trials and be persecuted? The answer is so that persecution can turn into preaching and trials into testimony (Luke 21:13).

The faithful shall be put into fiery trials so that we can shine out for Jesus; so that the name of Jesus for which we are persecuted would continue to be preached and given testimony of.
Turn to Jesus today and He will turn your trials into testimony.

Luke 21:12-13 (KJV)
12
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.
13
And it shall turn to you for a testimony.