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Men are indeed to be taught that the favour of God is offered, without exception, to all who ask it; but since those only begin to ask whom heaven by grace inspires, even this minute portion of praise must not be withheld from Him. It is the privilege of the elect to be regenerated by the Spirit of God, and then placed under His guidance and government.

John Calvin (1845). “Institutes of the Christian Religion”, p.132, Lulu.com
Men are indeed to be taught that the favour of God is offered, without exception, to all who ask it; but since those only begin to ask whom heaven by grace inspires, even this minute portion of praise must not be