'Alone' in the Bible

The Lord God said, "It is not good for the man to be alone. I will make a companion for him who corresponds to him."

So Jacob was left alone. Then a man wrestled with him until daybreak.

But Jacob replied, "My son will not go down there with you, for his brother is dead and he alone is left. If an accident happens to him on the journey you have to make, then you will bring down my gray hair in sorrow to the grave."