'Someone' in the Bible

"When this happens, someone will compose a proverb about you, lamenting sorrowfully, "We are completely ruined! He has given my people's heritage to others. How he has removed it from me, dividing up our fields!'

This is what the Lord says: "The prophets who mislead my people are as good as dead. If someone gives them enough to eat, they offer an oracle of peace. But if someone does not give them food, they are ready to declare war on him.