'Observed' in the Bible

Who said to his father and to his mother, I see him not, And he acknowledged not his brethren, And knew not his own children; For they have observed thy word, And kept thy covenant.

And the whole congregation took counsel to observe other seven days; and they observed the seven days with gladness.

Also day by day, from the first day to the last day, he read in the book of the law of God. And they observed the feast seven days; and on the eighth day was a solemn assembly, according to the ordinance.

And I came to Jerusalem, and observed the evil that Eliashib had done for Tobijah, in preparing him a chamber in the courts of the house of God.

and that these days should be remembered and observed throughout every generation, in every family, every province, and every city, and that these days of Purim should not fail from among the Jews, nor the memorial of them cease from among their seed.

This I have had, because I have observed thy precepts.

I understand more than the aged, because I have observed thy precepts.

Then they that feared Jehovah spoke often one to another; and Jehovah observed it, and heard, and a book of remembrance was written before him for them that feared Jehovah, and that thought upon his name.