Did those early disciples of Jesus have the needed courage to keep on witnessing about him? Indeed they did, but they did not do it in their own strength.
فَمَشِيئَةُ ٱللهِ هِيَ أَنْ « يَخْلُصَ شَتَّى ٱلنَّاسِ » ،‏ ذٰلِكَ أَنَّ ٱلْفِدْيَةَ ‹ تَرْفَعُ خَطِيَّةَ ٱلْعَالَمِ !‏ › .‏ ‏ —‏ ١ تي ٢ :‏ ​ ٤ -‏ ٦ ؛‏ يو ١ :‏ ٢٩‏ .‏