4th commandment. 4️⃣
Against worldliness:
Deuteronomy 5:12
[12]Keep the sabbath day to sanctify it, as the LORD thy God hath commanded thee.

Jesus said that He is Lord even of the Sabbath day because that day was reserved for people to rest, however, God still works as the Lord even on such days:
Mark 2:27-28
[27]And he said unto them, The sabbath was made for man, and not man for the sabbath:...