Many of the weeks when I am preaching at churches, the readings have been adjusted and the gospel reading is Matthew 28:16-20:   ¹⁶Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. ¹⁷When they saw him, they worshiped him; but some doubted. ¹⁸Then Jesus came to them and said, "All authority in heaven and on earth has been given to me. ¹⁹Therefore go and make disciples of all nations, baptizing them in^[a] the name of the Father and of the Son and of the Holy Spirit, ²⁰and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age."

That part in verse 17 has really stuck out to me the last few times, "When they saw him, they worshiped him; but some doubted."  Doubted what?  That he was alive?  Probably not -  he was, after all, right there.  That He had actually been dead?  Probably not - it was well witnessed that he had in fact been dead, pierced, and blood and water flowed.  So what are they doubting?  Perhaps that he could do anything?  That he was the messiah?  Maybe, if you consider that the prevailing view of the day was that the messiah was going to begin a new reign of Israel free from Roman control.  It seems that they had good reason to doubt that that was going to happen.  Or perhaps it is the same condition that all of us who still battle against our fallen nature deal with - we can see God's work right before us, knowing what He can do and has done and yet at times we still do not believe that He work on our behalf and make things work in our lives. 

In all honesty I don't really have an answer, but I found it striking that just prior to the great commission, a passage well known by so many of the Christian faith that there is this verse.  What do you think it means?