For; or, therefore, as this particle is oft used. For this seems to be the punishment of their dulness. With stammering lips; either,
1. In way of condescension, as mothers and nurses teach children, lisping and stammering with them. Or,
2. In way of judgment; which suits best with the next clause. And another tongue; by people of a strange language, whom he shall bring among them, and into whose power he shall deliver them; which is a great aggravation of their misery: see Deuteronomy 28:49 Jeremiah 5:15 Ezekiel 3:5. Will he speak to this people: seeing they will not hear him speaking by his prophets and ministers, in their own language, they shall hear their enemies speaking to them in a strange and rough language.