Indeed, we used to supplicate Him before. Indeed, it is He who (52:28)

﴿إِنَّا كُنَّا مِن قَبْلُ نَدْعُوهُ ۖ إِنَّهُ هُوَ الْبَرُّ الرَّحِيمُ﴾
[ الطور: 28]

52:28 Indeed, we used to supplicate Him before. Indeed, it is He who is the Beneficent, the Merciful."

We used to worship Him in our worldly life and we used to pray to Him to protect us from the fire of hell.
He is Beneficent to His servants and Merciful to them.
Part of His beneficence and mercy upon us is that He guided us to faith, entered us into Paradise and distanced us from the fire.
”

"Verily, We used to invoke Him (Alone and none else) before. Verily, He is Al-Barr (the Most Subtle, Kind, Courteous, and Generous), the Most Merciful."

phonetic Transliteration

Inna kunna min qablu nadAAoohu innahu huwa albarru alrraheemu

Abdullah Yusuf Ali - Translation

"Truly, we did call unto Him from of old: truly it is He, the Beneficent, the Merciful!"

Safi-ur-Rahman al-Mubarakpuri

"Verily, We used to invoke Him before. Verily, He is the Most Subtle, the Most Merciful."

Page 524 English transliteration