When God sent his Son into the world, he sent him with a name — with many names, in fact. And in his mercy, God was pleased to inscribe assurance in nearly every syllable. Some of Jesus’s names do speak directly of his greatness, calling forth fearful awe. He is the Lord who commands creation, the King who rules the nations, the Judge who sifts men’s hearts, the Holy One who terrifies demons. But in line with the revelation of God’s name to Moses, so many of Jesus’s names testify to the glory of his grace.

For a certain kind of Christian, assurance of salvation can feel as fickle as a winter sun. Here and there, the sky shines blue and bright, filling the soul with light. Far more often, however, the days are mostly cloudy, the sun shadowed with uncertainty. And then sometimes, the sky goes gray for weeks on end, and the heart walks heavily under the darkness of doubt.

From the outside, such Christians may seem to bear much spiritual fruit: friends may mark the grace in their lives, accountability partners may encourage them, pastors may find no reason to question their faith. But for those under the clouds, even healthy fruit can look pale and sick. So even as they read their Bible, pray, gather with God’s people, witness, and confess their sins, they usually find some reason to wonder if they really belong to Christ.

How does assurance sink into the heart and psyche of those prone to second-guess? The Holy Spirit has many ways of nourishing confidence in his people — not least by teaching us to recognize the fruit he bears. But for the overly scrupulous among us, for whom personal holiness always seems uncertain, the Spirit also does more: he lifts our eyes above the clouds to show us God’s unchanging character.

Among the divine qualities he uses to nurture our assurance, we may find one surprising: God’s infinite commitment to his glory.

For the Sake of His Name

At first, God’s commitment to his glory may seem to weaken, not strengthen, a doubting Christian’s assurance. If God does everything “to the praise of his glory” (Ephesians 1:14), for the fame of his name, what hope do we have — we who daily fall short of that glory, who often dishonor that name? We would need to find assurance elsewhere, it would seem.

Yet those who pay attention will find God’s zeal for his name running like a silver thread of hope through all the Scriptures. When Israel’s army fell before Ai, “What will you do for your great name?” was Joshua’s cry (Joshua 7:9). When the nation sinned by demanding a human king, Samuel assured the fearful, “The Lord will not forsake his people, for his great name’s sake” (1 Samuel 12:22). When, later, Israel teetered on the brink of exile, Jeremiah pleaded, “Do not spurn us, for your name’s sake” (Jeremiah 14:21). And when the nation languished in Babylon, Daniel grounded his bold prayers on “your name” (Daniel 9:19).

Again and again, the guilty people of God appeal not only to God’s mercy, but to his unflinching allegiance to his glory. Save us, restore us, keep us, defend us — and do it for the sake of your name! So what did they know about God’s name that we may not?

His People, Their God

First, they knew that God, in unspeakable mercy, had condescended to put his name upon his people (Numbers 6:27). By making a covenant with Israel — taking them as his people, pledging himself as their God — he wrapped up his glory with their good; he wove his fame together with their future.

The surrounding nations knew, as Daniel prayed, that “your city and your people are called by your name” (Daniel 9:19). And so, when God lifted up his people, he lifted up his name; when God helped his people, he hallowed his name. Through Israel’s welfare, he trumpeted his own worth, showing himself as the only living God in a world of lifeless idols.

No doubt, God’s name proved useless to those who presumed upon it, who chanted “The Lord! The Lord!” so they could keep sinning in safety (Jeremiah 7:8–15). When Israel’s unrepentant ran to God’s name for refuge, they found the door locked. But for the humble repentant, God’s name stood like the strongest tower (Proverbs 18:10). They might be sinful and unworthy in themselves, but God had given them his name.

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