Now the eleven disciples went to Galilee, to the mountain to which Jesus had directed them. When they saw him, they worshiped him; but some doubted. And Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything that I have commanded you. And remember, I am with you always, to the end of the age.” (Matthew 28:16-20, NRSV)
Is it possible to doubt and worship at the same time?
Verse 17 says “When they saw him, they worshiped him; but some doubted.” Funny thing is the word for some is not in the original Greek. But some scholars say because of the construction of the sentence it is implied. But in all other instances of this in extra-biblical writing, as this construction is not found anywhere else in the bible, the some is never added. So the disciples gathered on the mountain, and they saw Jesus and the worshiped and they doubted what they saw.
But this should not be a problem for us. Because they were still worshipping even though they were wondering how what they were seeing could possibly be. So next time you wonder or question, don’t worry, just hold on to faith, and hope and keep on worshipping!
aSacredRebel 
Interesting word doubt. I have coworkers in a India that at times have “doubts” about a design I wrote. Actually they had questions, wanting me to clarify or explain something. Perhaps that is the sense that they worshipped, but still didn’t quite understand what had happened.