Luke 21:9 But when ye shall hear of wars and commotions, be not terrified: for these things must first come to pass; but the end is not by and by.
These things will come prior to the return of Jesus as king.
Luke 21:10 Then said he unto them, Nation shall rise against nation, and kingdom against kingdom:
Nations will fight and kingdoms will war. In the Spiritual realm kingdoms will war, the angels will fight the fallen angels of satan. War will be in the minds of people. There will be many false religions to choose from, and the way of God will not be preached by many churches who give in to pleasing the people.
Luke 21:11 And great earthquakes shall be in divers places, and famines, and pestilences; and fearful sights and great signs shall there be from heaven.
We see these things happening now.
Luke 21:12 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.
He is speaking to Jewish people, some who were his followers. Persecution is a promise. Even in these times people are not liking Christians. They get in the way and point fingers at sin. Homosexuality is sin, abortion is murder, living together before marriage is fornication. Even the courts are given over to exalting flesh above God. Only God is the way of truth and there are many seeking to remove him from our public life.
Luke 21:13 And it shall turn to you for a testimony.
Luke 21:14 Settle it therefore in your hearts, not to meditate before what ye shall answer:
Luke 21:15 For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist.
Jesus will give you wisdom to testify, through the Holy Spirit.
Mat 10:18 And ye shall be brought before governors and kings for my sake, for a testimony against them and the Gentiles.
Mat 10:19 But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak.
Mat 10:20 For it is not ye that speak, but the Spirit of your Father which speaketh in you.
TheSpirit of truth in you, as a believer in Jesus Christ will speak for you. What an awesome promise. God in us speaking from us, giving us wisdom and truth that no man will be able to turn against you nor resist. God speaking is the word that accomplishes it's purpose.
Isa 55:10 For as the rain cometh down, and the snow from heaven, and returneth not thither, but watereth the earth, and maketh it bring forth and bud, that it may give seed to the sower, and bread to the eater:
Isa 55:11 So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it.
Fear not man nor devil, God is greater. He is life abundant, now and forever. His word is true and eternal. He is God Almighty. A loving God to those who come to him and a terror to those who turn from him and do evil. He wants all to be loved through His Son, Jesus.