God will fill our mouths with His word.

Matthew 10:18 You will be brought before governors and kings for My sake, as a testimony to them and to the Gentiles.

19 But when they deliver you up, do not worry about how or what you should speak. For it will be given to you in that hour what you should speak;

20 for it is not you who speak, but the Spirit of your Father who speaks in you.

Men will betray us? We will be brought before secular courts? Sounds very familiar in our day, now. But it will be for the glory of God. The world is looking in at Jesus' church. How do we respond? We dont. Scrap our agenda! We are to rely on the Holy Spirit even down to our speech. This is a glorious moment if we allow because the Father will speak thru us. Thats how this will be a testimony to the unbelievers around us. God will give us a platform to get His love & heart out to this dark world. When you dont know what to do or say, trust the LORD. He will give you the words. We do need to read His word and deposit the word of God in our hearts.