He who is savingly called answers to God's call. Such as are deaf to God's call show they are not called by grace. He who is effectually called stops his ears to all other calls which would call him off from God. As God has his call, so there are other contrary calls. Election is the cause of our vocation, and vocation is the sign of our election.
Election is the first link of the golden chain of salvation, vocation is the second.
He who has the second link of the chain is sure of the first. As by the stream we are led to the fountain, so by vocation we ascend to election. We may read God's predestinating love in the work of grace in our heart. Let such as are called be thankful to God for that unspeakable blessing. Be thankful to all the persons in the Trinity, to the Father's mercy, to the Son's merit, to the Spirit's efficacy.