To those who are called, beloved in God the Father and kept for Jesus Christ: (Jude 1)

John MacArthur says:

Spurgeon, a famous English preacher of the 19th century, said, “The general call of the gospel is like the sheet lightning we sometimes see on a summer’s evening–beautiful, grand–but whoever heard of anybody being struck by it? But the special call is the forked flash from heaven; it strikes somewhere. It is the arrow shot between the joints of the harness.” When a person hears a general presentation of the gospel, he can accept it or reject it. But when the Spirit of God moves in and transforms a life, the person responds to that efficacious call and becomes one of “the called.” Galatians 5:13 says, “…ye have been called unto liberty….” The shackles of sin are broken; a person is set free when he receives the effectual call of God. It is an eternal call, and God promises that everybody who is called is justified and also glorified– nothing can break down that process.