Signior Bassanio, hear me: If I do not put on a sober habit, Talk with respect, and swear but now and then, Wear prayer-books in my pocket, look demurely, Nay more, while grace is saying, hood mine eyes Thus with my hat, and sigh, and say ’amen’; Use all the observance of civility, Like one well studied in a sad ostent To please his grandam, never trust me more.
There are no more uses of "observance" in the play.
Show samples from other sources
As her release date neared, Vanessa got increasingly anxious, with a decided uptick in religious observance.
Piper Kerman -- Orange Is the New Black
"Religious observances shouldn’t be denied to anyone."