ثم أرسلنا رسلنا تترا
Then We sent Our Messengers in succession.
Ibn Abbas said,
"(This means) following one another in succession.''
This is like the Ayah:
ولقد بعثنا فى كل أمة رسوﻻ أن اعبدوا الله واجتنبوا الطغوت فمنهم من هدى الله ومنهم من حقت عليه الضللة
And verily, We have sent among every Ummah a Messenger (proclaiming):
"Worship Allah, and avoid Taghut (all false deities).''
Then of them were some whom Allah guided and of them were some upon whom the straying was justified. (16:36)
كل ما جاء أمة رسولها كذبوه
Every time there came to a nation their Messenger, they denied him;
meaning the greater majority of them.
This is like the Ayah:
يحسرة على العباد ما يٲتيهم من رسول إﻻ كانوا به يستهزءون
Alas for mankind! There never came a Messenger to them but they used to mock at him. (36:30)
فٲتبعنا بعضهم بعضا
so We made them follow one another,
means, `We destroyed them,' as Allah says:
وكم أهلكنا من القرون من بعد نوح
And how many generations have We destroyed after Nuh! (17:17)
وجعلناهم أحاديث
and We made them as Ahadith,
meaning, stories and lessons for mankind, as Allah says elsewhere:
فجعلنهم أحاديث ومزقنهم كل ممزق
so, We made them as tales (in the land), and We dispersed them all totally. (34:19)
فبعدا لقوم ﻻ يومنون
So, away with a people who believe not!