¹¹ Besides this you know the time, that the hour has come for you to wake from sleep. For salvation is nearer to us now than when we first believed. ¹² The night is far gone; the day is at hand. So then let us cast off the works of darkness and put on the armor of light. ¹³ Let us walk properly as in the daytime, not in orgies and drunkenness, not in sexual immorality and sensuality, not in quarreling and jealousy. ¹⁴ But put on the Lord Jesus Christ, and make no provision for the flesh, to gratify its desires. – Romans 13:11-14 ESV

Earlier in his letter, Paul quoted Deuteronomy 29:4, which speaks of the nation of Israel’s spiritual stupor or slumber. Now, he issues a wake-up call to the believers in Rome, urging them to rub the sleep from their own eyes and recognize the urgency of the moment.

This is not the first time Paul has used this kind of language when writing to believers. He told the Corinthians, “Wake up from your drunken stupor, as is right, and do not go on sinning. For some have no knowledge of God. I say this to your shame” (1 Corinthians 15:34 ESV). In essence, Paul was telling them that they should know better. Their relationship with God through Jesus Christ had provided them with a knowledge of God that should have dramatically altered their behavior.

Paul wrote something similar to the believers in Ephesus.

Take no part in the worthless deeds of evil and darkness; instead, expose them. It is shameful even to talk about the things that ungodly people do in secret. But their evil intentions will be exposed when the light shines on them, for the light makes everything visible. This is why it is said,

There is a sense in which all believers can be lulled into a state of spiritual stupor or slumber, wandering around half-asleep and unaware of what is taking place around us. As believers, we have been called to live in alertness and awareness, with a keen eye on the times in which we live. The apostle Peter wrote, “Stay alert! Watch out for your great enemy, the devil. He prowls around like a roaring lion, looking for someone to devour” (1 Peter 5:89 NLT). Paul challenged the Colossian believers, “Devote yourselves to prayer with an alert mind and a thankful heart” (Colossians 4:2 NLT). Even Jesus Himself said, “So you, too, must keep watch! For you don’t know what day your Lord is coming” (Matthew 24:42 NLT).

When Paul wrote the church in Thessalonica, he used very similar terminology.

For you are all children of the light and of the day; we don’t belong to darkness and night. So be on your guard, not asleep like the others. Stay alert and be clearheaded. Night is the time when people sleep and drinkers get drunk. But let us who live in the light be clearheaded, protected by the armor of faith and love, and wearing as our helmet the confidence of our salvation. – 1 Thessalonians 5:5-8 NLT

There is to be a radical difference in the way in which we conduct our lives on this planet. We are no longer to live as if we were half-asleep and incapable of recognizing the dangers around us. We have had our eyes opened by the gospel, and the truth has been exposed to us. We have no excuse for living as if we are still in the dark about the seriousness of sin or the expectations of God. He has called us to live holy lives, and He has provided His Holy Spirit to make it possible.

Paul says we are to “walk properly as in the daylight” (Romans 13:13 ESV). Those who live in the dark do so to hide their sins. Thieves operate in darkness, not daylight, using the cover of darkness to conceal their actions. But we have been exposed to the Light. Paul would have us remember that the light of Christ shines in us and through us.

For God, who said, “Let there be light in the darkness,” has made this light shine in our hearts so we could know the glory of God that is seen in the face of Jesus Christ. We now have this light shining in our hearts, but we ourselves are like fragile clay jars containing this great treasure. This makes it clear that our great power is from God, not from ourselves. – 2 Corinthians 4:6-7 NLT

That is why he told the Roman believers to “cast off the works of darkness and put on the armor of light” (Romans 13:12 ESV). There is something protective about living in the light; it illuminates our path, guides our way, and exposes dangers along the way. When light exists, darkness cannot coexist. Paul put it this way:

How can righteousness be a partner with wickedness? How can light live with darkness? – 2 Corinthians 6:14 NLT

But the danger we face is allowing the light in our lives to diminish. When we take our eyes off of Jesus and forget the promise of His return, we can become overwhelmed by the darkness of this world. We can also end up compromising our convictions and becoming a “friend of the world,” as James warned.

Don’t you realize that friendship with the world makes you an enemy of God? I say it again: If you want to be a friend of the world, you make yourself an enemy of God. – James 4:4 NLT

Paul repeatedly used the metaphor of darkness and light to illustrate the believer’s need for living a distinctive, set-apart life.

Don’t participate in the things these people do. For once you were full of darkness, but now you have light from the Lord. So live as people of light! For this light within you produces only what is good and right and true. – Ephesians 5:7-9 NLT

For you are all children of the light and of the day; we don’t belong to darkness and night. So be on your guard, not asleep like the others. Stay alert and be clearheaded. – 1 Thessalonians 5:5-6 NLT

Salvation should result in sanctification, the ongoing transformation of the believer’s life into the likeness of Jesus, “the Light of the world” (John 8:12). And, as believers, we should constantly consider the promise that our sanctification will one day result in our glorification. We are to live with that end in mind. That is why Paul said, “For salvation is nearer to us now than when we first believed” (Romans 13:11 ESV). This is a reference to the culminating act of God’s redemptive plan for His children, their glorification. This is what John meant when he wrote, “Dear friends, we are already God’s children, but he has not yet shown us what we will be like when Christ appears. But we do know that we will be like him, for we will see him as he really is. And all who have this eager expectation will keep themselves pure, just as he is pure” (1 John 3:2-3 NLT).

Our hope should be in the promise of our glorification when Christ returns, and we should live in anticipation of that day. Those who don’t know Christ live their lives as if this world is all there is. They remain unenlightened about the reality of eternity. They are asleep, unaware of the danger lurking ahead, and when they finally wake up, they will realize it is too late to respond to the gospel.

But as believers, we know better, and so we should live differently. We have already been issued our wake-up call. Now we are to live fully awake and alert to the dangers around us and the hope that lies ahead of us.