Someone told me the that the sunday is the Lord's day, the earliest Christians never considered Sunday to be a rest day or the Sabbath. You will observe that the first mention of Sunday being a day of rest was in 220AD by Origen. And working on the sunday is not a problem. Ehata re your thoughts, because some says it is a sin to work on sundag, while the first christians jews also worked and were nnot giong against it ?