'Alone' in the Bible

There is one alone and without a second; also he hath neither son nor brother: yet is there no end of all his labour, neither is his eye satisfied with riches, and he saith not, For whom then am I labouring, and depriving my soul of good? This also is vanity and a grievous occupation.

For if they fall, the one will lift up his fellow; but woe to him that is alone when he falleth, and who hath not another to lift him up!

Again, if two lie together, then they have warmth; but how can one alone be warm?