Matt.19.20  The young man said to him, "All these I have observed; what do I still lack?"
Matt.23.3  so practice and observe whatever they tell you, but not what they do; for they preach, but do not practice.
Matt.28.20  teaching them to observe all that I have commanded you; and lo, I am with you always, to the close of the age."
Mark.7.3  (For the Pharisees, and all the Jews, do not eat unless they wash their hands, observing the tradition of the elders;
Mark.7.4  and when they come from the market place, they do not eat unless they purify themselves; and there are many other traditions which they observe, the washing of cups and pots and vessels of bronze.)
Mark.10.20  And he said to him, "Teacher, all these I have observed from my youth."
Luke.17.20  Being asked by the Pharisees when the kingdom of God was coming, he answered them, "The kingdom of God is not coming with signs to be observed;
Luke.18.21  And he said, "All these I have observed from my youth."
Acts.11.6  Looking at it closely I observed animals and beasts of prey and reptiles and birds of the air.
Acts.17.23  For as I passed along, and observed the objects of your worship, I found also an altar with this inscription, `To an unknown god.' What therefore you worship as unknown, this I proclaim to you.
Acts.21.21  and they have been told about you that you teach all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children or observe the customs.
Rom.14.6  He who observes the day, observes it in honor of the Lord. He also who eats, eats in honor of the Lord, since he gives thanks to God; while he who abstains, abstains in honor of the Lord and gives thanks to God.
Gal.4.10  You observe days, and months, and seasons, and years!
2Tim.3.10  Now you have observed my teaching, my conduct, my aim in life, my faith, my patience, my love, my steadfastness,
Jas.9.15  For if any one is a hearer of the word and not a doer, he is like a man who observes his natural face in a mirror;
Jas.9.16  for he observes himself and goes away and at once forgets what he was like.