First off, that's not in the Bible. Jesus didn't say that. Second off, Luke didn't become a follower until after the crucifixion. He wasn't there and he never actually knew Jesus. He was a companion of Paul's and it was Paul who told him the Gospel story. Paul wasn't at the crucifixion either, BTW, so riddle me this. If neither one of them were there, how does he know what was said? Paul did not have a good relationship ships with the surviving disciples when he met them..