Deuteronomy 34:4-6

Then the LORD said to him, “This is the land I promised on oath to Abraham, Isaac and Jacob when I said, ‘I will give it to your descendants.’ I have let you see it with your eyes, but you will not cross over into it.” And Moses the servant of the LORD died there in Moab, as the LORD had said. He buried him in Moab, in the valley opposite Beth Peor, but to this day no one knows where his grave is.