﴿ وَهُوَ ٱلَّذِى يَقْبَلُ ٱلتَّوْبَةَ عَنْ عِبَادِهِۦ وَيَعْفُوا۟ عَنِ ٱلسَّيِّـَٔاتِ وَيَعْلَمُ مَا تَفْعَلُونَ ﴾

“and it is He who accepts repen­tance from His servants, and pardons bad deeds, and knows all that you do,”

Please check ayah 42:28 for complete tafsir.