Tafsir of Al-Anbiya' 21:41

The Lessons to be learned from Those Who mocked the Messengers in the Past Allah says consoling His Messenger for the pain and insult caused by the mockery and disbelief of the idolators,

ولقد استهزي برسل من قبلك فحاق بالذين سخروا منهم ما كانوا به يستهزوون

Indeed (many) Messengers were mocked before you, but the scoffers were surrounded by what they used to mock. meaning, the punishment which they thought would never come to pass. This is like the Ayah:

ولقد كذبت رسل من قبلك فصبروا على ما كذبوا وأوذوا حتى أتهم نصرنا وﻻ مبدل لكلمت الله ولقد جاءك من نبٳ المرسلين

Verily, Messengers were denied before you, but with patience they bore the denial, and they were hurt; till Our help reached them, and none can alter the Words of Allah. Surely, there has reached you the information (news) about the Messengers (before you). (6:34) Then Allah mentions His favor for His creatures; He protects them by night and by day, taking care of them and watching over them with His Eye that never sleeps