35. Therefore patiently persevere as did (all) apostles of inflexible purpose; and be in no haste about the (Unbelievers). On the Day that they see the (Punishment) promised them (it will be ) as if they had not tarried more than an hour in a single day. (Thine but) to proclaim the Message: but shall any be destroyed except those who transgress?

Notes (Tafseer)

4815. All good work proceeds in its own good time. We should never be impatient either about its success or about the punishment which is bound to come for those who oppose it or wish to suppress it. The inevitable punishment is spoken of as the Punishment promised. It will come so soon and so suddenly that it will appear as if there was not the delay of a single hour in a single day! Time is a great factor in our affairs in this world, but it hardly counts in the next world.

4816. The Preacher's duty is to proclaim the Message in unmistakable terms. If any human beings come in the way, it will be to their own destruction; but none but rebellious transgressor will be punished. There is always hope and forgiveness for repentance and amendment.