'Observing' in the Bible

(For the Pharisees and all the Jews do not eat unless they carefully wash their hands, thus observing the traditions of the elders;

And He sat down opposite the treasury, and began observing how the people were putting money into the treasury; and many rich people were putting in large sums.

and when I had fixed my gaze on it and was observing it I saw the four-footed animals of the earth and the wild beasts and the crawling creatures and the birds of the air.