They were setting foot on sacred, or holy, ground.
I can give you several sentences.Each religion has a sacred text.The sacred part of the temple is off limits to outsiders.This is a sacred relic.
The treasure box was sacred to me.
Freedom of speech is a central and sacred tenet of any democracy
Emily used a sacred book for church.
The explores discovered a sacred temple and were cursed.
An indian religion based on the teaching of mahavira that teaches all life is sacred
Sacraments were sacred rite that Christians believed brought them grace, or a special blessing from God.
When soldiers raided the church, they desecrated sacred ground and defiled holy scriptures.
In India, it is believed that cows are people reincarnated and as such, are considered sacred.