'Custom' in the Bible

Then the firstborn said to the younger, “Our father is old, and there is no man in the land to sleep with us as is the custom of all the land.

Laban answered, “It is not the custom in this place to give the younger daughter in marriage before the firstborn.

It was her custom to sit under the palm tree of Deborah between Ramah and Bethel in the hill country of Ephraim, and the Israelites went up to her for judgment.

At the end of two months, she returned to her father, and he kept the vow he had made about her. And she had never been intimate with a man. Now it became a custom in Israel

David did not let a man or woman live to be brought to Gath, for he said, “Or they will inform on us and say, ‘This is what David did.’” This was David’s custom during the whole time he stayed in the Philistine territory.

They shouted loudly, and cut themselves with knives and spears, according to their custom, until blood gushed over them.

As she looked, there was the king standing by the pillar according to the custom. The commanders and the trumpeters were by the king, and all the people of the land were rejoicing and blowing trumpets. Athaliah tore her clothes and screamed “Treason! Treason!”

The settlers spoke to the king of Assyria, saying, “The nations that you have deported and placed in the cities of Samaria do not know the requirements of the God of the land. Therefore He has sent lions among them that are killing them because the people don’t know the requirements of the God of the land.”

Then the king of Assyria issued a command: “Send back one of the priests you deported. Have him go and live there so he can teach them the requirements of the God of the land.”

They feared the Lord, but they also worshiped their own gods according to the custom of the nations where they had been deported from.

However, they would not listen but continued practicing their former customs.