'Observe' in the Bible

You must observe my regulations and you must be sure to walk in my statutes. I am the Lord your God.

It is a Sabbath of complete rest for you, and you must humble yourselves on the ninth day of the month in the evening, from evening until evening you must observe your Sabbath."

"Speak to the Israelites and tell them, 'When you enter the land that I am giving you, the land must observe a Sabbath to the Lord.