Is blasphemy of God’s name by swearing and cursing really such serious sin that God is angry also with those who do not do all they can to help prevent and forbid it?
Leviticus 5:1 – “‘If anyone sins because they do not speak up when they hear a public charge to testify regarding something they have seen or learned about, they will be held responsible.
Leviticus 24:10-17 – Now the son of an Israelite mother and an Egyptian father went out among the Israelites, and a fight broke out in the camp between him and an Israelite. The son of the Israelite woman blasphemed the Name with a curse; so they brought him to Moses. (His mother’s name was Shelomith, the daughter of Dibri the Danite.) They put him in custody until the will of the Lord should be made clear to them.
Then the Lord said to Moses: “Take the blasphemer outside the camp. All those who heard him are to lay their hands on his head, and the entire assembly is to stone him. Say to the Israelites: ‘Anyone who curses their God will be held responsible; anyone who blasphemes the name of the Lord is to be put to death. The entire assembly must stone them. Whether foreigner or native-born, when they blaspheme the Name they are to be put to death.
“‘Anyone who takes the life of a human being is to be put to death.