Tafsir of As-Saffat 37:171

The Promise of Victory and the Command to turn away from Idolators Allah says,

ولقد سبقت كلمتنا لعبادنا المرسلين

And, verily, Our Word has gone forth of old for Our servants, the Messengers, meaning, it has already been stated in the first decree that the Messengers and their followers will ultimately prevail in this world and the Hereafter. This is like the Ayah:

كتب الله ﻻغلبن أنا ورسلى إن الله قوى عزيز

Allah has decreed: "Verily, it is I and My Messengers who shall be the victorious.'' Verily, Allah is All-Powerful, Almighty. (58:21) and,

إنا لننصر رسلنا والذين ءامنوا فى الحيوة الدنيا ويوم يقوم اﻻشهد

Verily, We will indeed make victorious Our Messengers and those who believe in this world's life and on the Day when the witnesses will stand forth. (40:51)

ولقد سبقت كلمتنا لعبادنا المرسلين

إنهم لهم المنصورون