'Souls' in the Bible

When the Lamb broke the fifth seal, I saw at the foot of the altar the souls of those whose lives had been sacrificed because of the word of God and of the testimony which they had given.

And I saw thrones, and some who were seated on them, to whom judgment was entrusted. And I saw the souls of those who had been beheaded on account of the testimony that they had borne to Jesus and on account of God's Message, and also the souls of those who had not worshipped the Wild Beast or his statue, nor received his mark on their foreheads or on their hands; and they came to Life and were kings with Christ for a thousand years.