Formed-By-Love
Faith justifies as it is *formed* by love (*fides caritate formata*) — the Tridentine position rejected by WCF XI.2.
This is a contested or rejected alternative.
The Westminster baseline on Saving Faith is Receptive-Resting-On-Christ-Alone. Personas and schools listed below hold this alternative position instead — either because they argued for it at the Assembly (like the Erastians on polity) or because they represent a receiving tradition that departed from the Standards on this point.
Other positions on Saving Faith
Receptive-Resting-On-Christ-Alone WCF
Saving faith is the act of the soul receiving and resting upon Christ alone for salvation, as he is offered in the gospel (WCF XIV.2; SC Q. 86).
Mere-Assent
Faith is bare intellectual assent without trust — the Socinian and (in some readings) the strict-orthodox-only inflection; rejected by XIV.2.