Sabbath or Sunday
Note: African Christians Continued to worship on the seventh-day sabbath before and even after the colonization of Africa in certain areas (e.g. Ethiopian Christians).
We do not keep the Sabbath according to the traditions of Catholicism or Judaism or because of Catholicism or Judaism.
We keep the Sabbath according to Jesus and according to the first Christian Church established by the first followers of Jesus--the first disciples and apostles of the Bible.
We keep the Sabbath because of the Ten Commandments written by the hand of God. The fourth commandment tells us to remember the Sabbath and keep it Holy. Jesus said if you love me keep my commandments.