The Bible teaches that the early church always worshipped on Sunday. It says in Acts 20:7, “And upon the first day of the week, when the disciples came together to break bread,…” They were gathering for communion and Bible study on Sunday.
It also says, when speaking of when the offering was to be taken that it was to be done on Sunday. 1 Corinthians 16:2 says, “Upon the first day of the week let every one of you lay by him in store, as God hath prospered him...” Clearly, the early church worshipped on Sunday. Now, I know that there are those within the church today who are convinced that we must all worship only on the Sabbath or Saturday. I’m not here to knock them in any way. However, I will go to Scripture on anyone who tries to put me back under the Old Testament Law. Jesus came and fulfilled the Law so that I would not have to. If I could have done it myself, Jesus would not have had to do it for me. When Jesus prayed in the garden, “O my Father, if this cup may not pass away from me, except I drink it, thy will be done” (Matthew 26:42); what He was in essence saying was, “Father, if this is not the only way for man to be saved, don’t make me do this.” Of course, God’s answer was delivered in the form of a kiss (Matthew 26:48-49).