They show that Jehovah does forgive repentant sinners. Of prime importance is earnest prayer to God.
يَنْبَغِي أَنْ تُسَاعِدَنَا ٱلْأَمْثِلَةُ ٱلْمَذْكُورَةُ آنِفًا عَلَى تَبْدِيدِ مَخَاوِفِنَا بِشَأْنِ مَا إِذَا أَخْطَأْنَا إِلَى ٱلرُّوحِ ٱلْقُدُسِ .‏