“When they saw him,

They worshiped him.

But some doubted.”

 

καὶ ἰδόντες αὐτὸν προσεκύνησαν, οἱ δὲ ἐδίστασαν.

 

This is unique to Matthew.  While most of these 11 disciples worshiped him (προσεκύνησαν) when they saw him (καὶ ἰδόντες αὐτὸν), Matthew remarked that there may have been a few who hesitated, wavered or doubted his presence (οἱ δὲ ἐδίστασαν).  This is interesting because ir indicates that some of the 11 apostles doubted the appearance of the post-resurrection Jesus, perhaps Thomas and a few others.