'Strictly' in the Bible

Then one of the people said, “Your father strictly put the people under oath, saying, ‘Cursed be the man who eats food today.’” And the people were weary.

Whoever will not observe the law of your God and the law of the king, let judgment be executed upon him strictly, whether for death or for banishment or for confiscation of goods or for imprisonment.”

“I am a Jew, born in Tarsus of Cilicia, but brought up in this city, educated under Gamaliel, strictly according to the law of our fathers, being zealous for God just as you all are today.