QUESTION: Mark 1:21 and Luke 4:31 talk of Jesus going into the synagogues and teaching on the Sabbath Day. If the first day was a commanded day , why didn’t He encourage them to assemble on that day?
ANSWER: Jesus lived under the Old Testament and kept its laws perfectly, including worshipping on the Sabbath. The New Testament, under which Christians worship on the first day, did not come into effect until the Old Testament (including Sabbath keeping) was taken out of the way at the cross and death of Christ (Colossians 2:14-16)!