when they saw him] This is thought by some to be that great vision spoken of, 1 Corinthians 15:6. wherein our Saviour appeared to more then five hundred brethren at once: for this onely was foretold by the angel, and promised by Christ, v. 7. 10. and it is no where intimated in the Gospels, unlesse it be intended here. It might also be a great confirmation of the apostles power, to have it committed to them before so many witnesses. they worshipped him] Acknowledging his resurrection and divine power, by bowing to him. but doubted] Till he came neerer to them, and spake to them, v. 18.