'Observe' in the Bible

Be careful to observe the Sabbath day just as the Lord your God has commanded you.

Recall that you were slaves in the land of Egypt and that the Lord your God brought you out of there by strength and power. That is why the Lord your God has commanded you to observe the Sabbath day.

Keep his commandments very carefully, as well as the stipulations and statutes he commanded you to observe.

For if you carefully observe all of these commandments I am giving you and love the Lord your God, live according to his standards, and remain loyal to him,

You must follow the Lord your God and revere only him; and you must observe his commandments, obey him, serve him, and remain loyal to him.

Observe the month Abib and keep the Passover to the Lord your God, for in that month he brought you out of Egypt by night.

Furthermore, remember that you were a slave in Egypt, and so be careful to observe these statutes.

It must be with him constantly and he must read it as long as he lives, so that he may learn to revere the Lord his God and observe all the words of this law and these statutes and carry them out.

and then you are careful to observe all these commandments I am giving you today (namely, to love the Lord your God and to always walk in his ways), then you must add three more cities to these three.

"If you indeed obey the Lord your God and are careful to observe all his commandments I am giving you today, the Lord your God will elevate you above all the nations of the earth.

he said to them, "Keep in mind all the words I am solemnly proclaiming to you today; you must command your children to observe carefully all the words of this law.