The Messenger’s Doubt
[10:94] If you have any doubt regarding what is revealed to you from your Lord, then ask those who read the previous scripture. Indeed, the truth has come to you from your Lord. Do not be with the doubters.
[10:95] Nor shall you join those who rejected GOD’s revelations, lest you be with the losers.
[10:96] Surely, those condemned by a decree from your Lord cannot believe.
[10:97] No matter what kind of proof you show them, (they cannot believe), until they see the painful retribution.
This is the 51st revelation so he was pretty far along his messengership, so what is the messenger doubting in 10:94?
Chapter 17 is 50th revelation
God Strengthens the Messenger
[17:73] They almost diverted you from the revelations we have given you. They wanted you to fabricate something else, in order to consider you a friend. [17:74] If it were not that we strengthened you, you almost leaned towards them just a little bit. [17:75] Had you done that, we would have doubled the retribution for you in this life, and after death, and you would have found no one to help you against us. [17:76] They almost banished you from the land to get rid of you, so they could revert as soon as you left. [17:77] This has been consistently the case with all the messengers that we sent before you, and you will find that our system never changes.