There is a well-worn and pessimistic saying that the only things that are sure in life are death and taxes. And it certainly is true that life is full of uncertainties. Health can deteriorate in an instant. Even the most promising of careers can meet with disappointment. The best of plans can fall apart. And even after a lifetime of faithfulness, one temptation can catch us by surprise. But the Lord is faithful. He will establish you and guard you against the evil one.