We have the Quran. Why do we still need to read the Injil?
Al-Injil in the Qur'an said: Isa is Al-Masih And both the Qur'an and Injil say that Isa Al-Masih is Kalima (the word) or Kalimat Allah, which is "The Word of Allah". This recorded in the Qur'an 6 times*.
This means the Word of Allah is among the people.
“In the beginning, before this world of dunya was born, there was Kalimatullah (The Word). Already Kalimatullah was with Allah, and as Allah is, so is Kalimatullah.” (Injil Yahya 1:1).
Then Kalimatullah became a human being. (Isa Al-Masih)
Kalimatullah was born as a human and lives among us. We saw his glory as the glory of his father's only son. Abundant with compassion and truth (Injil Yahya 1:14)
Al Ruhul Kudusu (The Holy Spirit) روحالقدس is the author of the Injil.
The disciples of Isa Al-Masih recorded the Book of Injil inspired by Al Ruhul Kudusu, which means that the true author of the Injeel is Allah.
Isa Al-Masih told his disciples “But the Helper is Al-Ruhul Kudusu, which the Father will send in my name. He will teach you all things and will remind you of everything I have said to you.” Injil Yahya 14:26
Therefore, we can be certain that the word of Allah has been directed to mankind through Isa Al-Masih.
And the reason why we should read the Injil is because...
“…so that you may believe in Isa as Al Masih, the Beloved of Allah. and having faith you will live in the name of Isa.” Injil Yahya 20:31
* Quran 3:39, 3:45, 3:48, 4:171, 5:46, 5:11
