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In darker, more melancholy days, I am reminded of a truth from the Sweet Psalmist of Israel, David. He says, "in the night also, my heart instructs me... I have set the Lord always before me; because he is at my right hand, I shall not be shaken. Therefore, my heart is glad, and my whole being rejoices..." (Psalm 16).
Only God sees us at our lowest, when perhaps we sit in our own rooms with only a desk lamp on or lying on our beds in the dark, sighing, head down, maybe worried. In a night like that, the Psalmist David lets his heart instruct him. Literally, he preaches to himself. And what does he preach? He instructs himself by "setting the Lord before me," or reminding himself that God is right there. Though the night is dark and his world is shaking around him, the founder and creator of the world is by his side; and that makes him glad.
I have a friend who reminds me there are no bad days in Christ. This is true; for a Christian, knowing that your identity is Christ and that none of your successes or failures have any bearing on your worth in God's eyes-- knowing your salvation is sure-- should mean that every day is a good day in Christ.
But circumstances tend to affect us. We feel like there are good days and bad days; and to be honest, a lot of us feel like there are more bad days than good. But in times like that, days like January 21 when we've broken all our New Year's resolutions and we're going back to lonely old Wisconsin for the second semester of school to beat us up again, we can do what David does: we can preach to ourselves. We can tell ourselves, "the Lord is at my right hand, I shall not be shaken." We can say to our disappointments, "The LORD is my chosen portion and my cup (v. 5)." We can remember of Jesus Christ, "You are my Lord; I have no good apart from you (v. 2)."
And when we preach to ourselves, we let the truth, security, and happiness of our salvation take over. Simple phrases-- I once was lost and now am found, Jesus loves me-- remind us that everything in our lives could fail, but people who love Jesus can throw themselves on the foundational truth that he has already taken care of their biggest problems: sin, death, and separation from God. That is the Gospel. The Savior is no less by our side in these smaller and more temporary pains.
You don't automatically feel this way, but you have to fight for it. You have to preach it. Otherwise, the world-- the low-light days, the circumstances, the news-- will preach themselves to you. See, that's how David was able to say, "my heart is glad; my whole being rejoices!" In the same way, that's how the apostle Paul is able to command believers: "Rejoice in the Lord always. I say it again, REJOICE! (Phil 4:4)" That's how my friend is able to say, "There are no bad days in Christ." The Saddest Day of the Year will be upon us tomorrow. You may have many real reasons to hang your head in disappointment or sadness. Things happen to us... and it's tough. We can't take control of all our circumstances, but, what we can do is preach Christ-- the Gospel-- to ourselves and let that make us glad.