'Alone' in the Bible

Then the Lord God said, “It is not good for the man to be alone; I will make him a helper suitable for him.”

Then the Lord said to Noah, “Enter the ark, you and all your household, for you alone I have seen to be righteous before Me in this time.

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

But Jacob said, “My son shall not go down with you; for his brother is dead, and he alone is left. If harm should befall him on the journey you are taking, then you will bring my gray hair down to Sheol in sorrow.”

We said to my lord, ‘We have an old father and a little child of his old age. Now his brother is dead, so he alone is left of his mother, and his father loves him.’