I have been studying other denominations articles of faith on this point for over 30 years (Assembly of God, Methodists, Lutherans, etc.). I would challenge your understanding of their articles and the doctrine of eternal security.
Those who typically reject eternal security claim that final loss of salvation is not by justification by works but by decision of the will. This is a fundemental misunderstanding of the nature of "works" as defined by Christ in Matthew 15. Works are not merely good or bad EXTERNAL ACTIONS but begin with INTERNAL thoughts and decisions. The EXTERNAL actions are merely the evidential consquences of the INTERNAL actions. Do you realize this?
Hence, Biblically speaking "justification by works" means HEART ACTIONS that may or may not be manifested by MOUTH and BODY actions.
I have a good friend of mine who agrees with me that God will NEVER let one of his go, but he also holds that God honors our free will so much that he allows us to be able to escape His grasp!