'Careful to Observe' in the Bible

It will be righteousness for us if we are careful to observe all this commandment before the Lord our God, just as He commanded us.

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

You shall do according to the terms of the verdict which they declare to you from that place which the Lord chooses; and you shall be careful to observe according to all that they teach you.

“If you are not careful to observe all the words of this law which are written in this book, to fear this honored and awesome name, the Lord your God,

Assemble the people, the men and the women and children and the alien who is in your town, so that they may hear and learn and fear the Lord your God, and be careful to observe all the words of this law.