Charles H. Spurgeon on Psalms 119:11

That I might not sin against thee. Among many excellent virtues of the word of God, this is one: that if we keep it in our heart, it keeps us from sin, which is against God and against ourselves. We may mark it by experience, that the word is first stolen either out of the mind of man, and the remembrance of it is away; or at least out of the affection of man; so that the reverence of it is gone, before that a man can be drawn to the committing of a sin. So long as Eve kept by faith the word of the Lord, she resisted Satan; but from the time she doubted of that, which God made most certain by his word, at once she was snared. William Cowper.