At In Principio Deus (In the beginning God).
Covenant, Justification, and Pastoral Ministry
Flavel on the Distinction Between Justification and Sanctification
The latter is progressive and the former is punctiliar, definitive, and once-for-all. Todd explains.
What is the "Covenant of Redemption" (Pactum Salutis)?
Martin found a nice, brief definition in a musty, old book.