'Soul' in the Bible

For what shall it profit a man, if he shall gain the whole world, and lose his own soul?

Or what shall a man give in exchange for his soul?

And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this is the first commandment.

And to love him with all the heart, and with all the understanding, and with all the soul, and with all the strength, and to love his neighbour as himself, is more than all whole burnt offerings and sacrifices.

And saith unto them, My soul is exceeding sorrowful unto death: tarry ye here, and watch.