'Observe' in the Bible

They don't eat anything from the marketplace unless they dip it in water. They also observe many other traditions, such as the proper washing of washing cups, jars, brass pots, and dinner tables.)

And he said to them, Well do ye set aside the commandment of God, that ye may observe what is delivered by yourselves to keep.

"As soon, however, as you see the Abomination of Desolation standing where he ought not" --let the reader observe these words--"then let those in Judaea escape to the hills;