'Act' in the Bible

And when you come into the land which the Lord will make yours, as he gave his word, you are to keep this act of worship.

And when your children say to you, What is the reason of this act of worship?

And it will be that, when the Lord takes you into the land of the Canaanite and the Hittite and the Amorite and the Hivite and the Jebusite, the land which he made an oath to your fathers that he would give you, a land flowing with milk and honey, you will do this act of worship in this month.

Any man who gets another into his power in order to get a price for him is to be put to death, if you take him in the act.

If a thief is taken in the act of forcing his way into a house, and his death is caused by a blow, the owner of the house is not responsible for his blood.