They do not need someone else to verify what has happened to them. Jehovah leaves no doubt whatsoever in their minds and hearts.
لِذٰلِكَ ،‏ فَإِنَّ مَنْ يُوَجِّهُ ٱللهُ إِلَيْهِمْ هٰذِهِ ٱلدَّعْوَةَ ٱلْخُصُوصِيَّةَ لَا يَحْتَاجُونَ إِلَى شَهَادَةٍ إِضَافِيَّةٍ مِنْ أَحَدٍ لِيَتَأَكَّدُوا مِنْ مَسْحِهِمْ .‏