Jesus said just before he was living his disciples, his followers, you and me, he said you shall receive power after the holy spirit has come upon you and you shall be witnesses unto me  yes we witness by our life  but there's a danger in making that a cop out, because one other requirement of a witness is that they talk, they've gotta say what they know, these four men were good witnesses, they went back and they told the city what they had found, and there's placed upon you and me that responsibility to go back and to tell what we've found, this is a day of good tidings, we do wrong to keep silent.