8. If Jesus kept the seventh-day Sabbath, and His disciples continued to observe Sabbath after His resurrection, why do most Christians today observe Sunday?

Many Christians today believe they are observing Sunday in honor of Jesus’ resurrection. However, Jesus established baptism to symbolize His resurrection and the Lord’s Supper to commemorate His death. There is not one instance in the Bible that replaces God’s Sabbath with Sunday worship. Sunday was adopted into Christianity from pagan Rome’s sun worship and human traditions, but never by the command of God. Scripture predicted that the “man of sin” would cause apostasy to come into the church, through an attempt to alter the law of God.JTL5 4.4

The Roman Catholic church accepts responsibility for changing the day of worship from the seventh-day Sabbath to the first day of the week, Sunday. The quote below is from the Catholic Catechism:JTL5 4.5

Question: “Why do some observe Sunday instead of Saturday?”JTL5 4.6

Answer: “‘We observe Sunday instead of Saturday because the Catholic Church, in the Council of Laodicea (A.D. 336), transferred the solemnity from Saturday to Sunday.’”—Reverend Peter Geiermann, C.SS.R., The Convert’s Catechism of Catholic Doctrine, 2nd edition, 1910, p. 50.JTL5 4.7