“Sanctification is the only sure mark of God’s election. The names and number of the elect are a secret thing, no doubt, which God has wisely kept in His own power, and not revealed to man. It is not given to us in this world to study the pages of the book of life, and if our names are there. But if there is one thing clearly and plainly laid down about election, it is this – that elect men and women may be known and distinguished by holy lives.”

via The Demonstration of Being Elected « J.C. Ryle Quotes.