The Bible never wrote both the Sabbath and the Sunday service at all! As you see, most Christians are celebrating the Sunday service all over the world. While doing so, they preach that Christ Jesus is the Savior who will lead them to heaven.
However, Christ Jesus had not commanded the Sunday service at all. Rather, Christ Jesus has set us an example of keeping the Sabbath of the new covenant. Without keeping this Sabbath, how can you prove that you're God's people?

Keeping the Sabbath on Saturday is one of the ways that we can do God's will. Let us make efforts to keep the Sabbath according to God's commandment.

All Christians who love Jesus. How can we express our love for Jesus? How can we express our love for Jesus? God is showing us the way through the Bible. When we obey and keep His commandments, God acknowledges that we love Him. If we follow the example of Jesus and keep the Sabbath and the Passover, that is love for Jesus.

Amen! If God Elohim had commanded us to keep the Sunday service, the disciples of the First Coming Christ Jesus would have kept the Sunday service and they wrote it after following God's will. However all the prophets and disciples have been keeping the Sabbaths every weekend of Saturday until now. Therefore definitely to keep the Sabbaths is the way to please God Elohim and obey Their will.

God wants us to be God's holy people by keep the Sabbath. When we keep the Sabbath of the New Covenant, we can be holy and enter the everlasting rest as God's holy people. Christ Ahnsahnghong who brought back the New Covenant for our salvation must be our almighty God the creator.