Edward Polhill was an Anglican minister and Calvinistic tract writer. Here he offers a systematic theology, and reflects on 1 John 3:17. In order for one to have piety towards God, one will have a fountain of charity towards their neighbor.
Some on left may say this is a bit too exclusive. Some on right may object to the linkage as well— enemies ask me for help and I pray an awful lot!
How can you have a Fountain of Charity towards Mankind?
