'Observes' in the Bible

Yes, Job, his eyes constantly watch the behavior of human beings; he carefully observes their every step.

When the LORD looks down from heaven, he observes every human being.

Blessed is the one who does this, and the person that holds it fast, who observes the Sabbath without profaning it, and restrains his hands from practicing any evil.

where I gave them my statutes and revealed my ordinances to them, which if a person observes, he'll live by them.

"But the house of Israel rebelled against me in the wilderness. They didn't live by my statutes. They despised my ordinances, which if a person observes, he'll live by them. They greatly profaned my Sabbaths. So I said I would pour out my anger on them and bring them to an end in the wilderness.

The one who observes a special day, observes it to honor the Lord. The one who eats, eats to honor the Lord, since he gives thanks to God. And the one who does not eat, refrains from eating to honor the Lord; yet he, too, gives thanks to God.