Indefectible Grace
From BiblePortal Wikipedia
Indefectible Grace [1]
is, according to the Calvinists, grace which cannot be lost, or fail of its intended purpose, the salvation of those on whom it is bestowed, i.e. the elect, and is held to be irresistible by the person so elected, thus necessarily securing his salvation. (See Calvinism); (See Election); (See Grace); (See Will).