When sin lets us alone we may let sin alone.

To kill sin is the work of living men; where men are dead (as all unbelievers, the best of them, are dead), sin is alive, and will live.

There is not a day but sin foils or is foiled, prevails or is prevailed upon. It will always be so while we live in this world. Sin will not spare for one day. There is no safety but in a constant warfare for those who desire deliverance from sin's perplexing rebellion.

Now nothing can prevent this but mortification; that withers the root and strikes at the head of sin every hour, so that whatever it aims at it is crossed in.

If I have observed anything by experience, it is this: a man may take the measure of his growth and decay in grace according to his thoughts and meditations upon the person of Christ, and the glory of Christ's Kingdom, and of His love.

Meditate on the Word in the Word.

Would a soul continually eye His everlasting tenderness and compassion...[then] it could not bear an hour's absence from Him; whereas now, perhaps, it cannot watch with him one hour.