They should. Why can you be sure that Jehovah will give you courage to declare the good news?
٢٢ لِمَاذَا يُمْكِنُ أَنْ نَكُونَ وَاثِقِينَ أَنَّ يَهْوَه سَيَمْنَحُنَا ٱلشَّجَاعَةَ لِإِعْلَانِ ٱلْبِشَارَةِ ؟‏