He extends His mercy to whom He will and He is the - Surah al-‘Imran ayat 74 in Tafsir

﴿يَخۡتَصُّ بِرَحۡمَتِهِۦ مَن يَشَآءُۗ وَٱللَّهُ ذُو ٱلۡفَضۡلِ ٱلۡعَظِيمِ ﴾
[آل عِمران: 74]

He extends His mercy to whom He will and He is the source of sufficient grace which abounds in whom He will and of the efficacious grace which effects the end for which it is given

﴿يختص برحمته من يشاء والله ذو الفضل العظيم﴾ [آل عِمران: 74]

Dr Kamal Omar
He selects under His mercy whom He thinks proper. And Allah is the Possessor of Magnificent Bounty

Dr Laleh Bakhtiar
He singles out for His mercy whom He wills. And God is Possessor of Sublime Grace

Dr Munir Munshey
He selects (and singles out) for His mercy, whomever He wants. Allah is the Lord of great honor

Edward Henry Palmer
He specially favours with his mercy whom he pleases, for God is Lord of mighty grace

Farook Malik
He chooses for His mercy whom He pleases, Allah is the Owner of mighty grace

George Sale
He will confer peculiar mercy on whom he pleaseth; for God is indued with great beneficence

Maududi
He singles out for His mercy whomever He wills, Allah is possessed of abounding bounty.´