The elect are gathered into Christ’s flock by a call not immediately at birth, and not all at the same time, but according as it pleases God to dispense his grace to them. But before they are gathered unto that supreme Shepherd, they wander scattered in the wilderness common to all; and they do not differ at all from others except that they are protected by God’s especial mercy from rushing headlong into the final ruin of death. If you look upon them, you will see Adam’s offspring, who savor of the common corruption of the mass. The fact that they are not carried to utter and even desperate impiety is not due to any innate goodness of theirs but because the eye of God watches over their safety and his hand is outstretched to them!
The Institutes of the Christian Religion Vol. 2 (Louisville, Kentucky; Westminster John Knox Press; 1974) p. 976.