Holiness

Life Changing One Word Truths — Devotion 14 of 20

1 Peter 1:15-16 — “But as he who called you is holy, you also be holy in all your conduct, since it is written, ‘You shall be holy, for I am holy.’”

Opening Reflection

Holiness is a word that has fallen on hard times in the believer's vocabulary. To some it sounds like an old-fashioned moralism — a list of rules to keep and pleasures to avoid. To others it sounds like an unreachable perfection that paralyzes the soul before it can take a single step. Scripture means something different and far greater than either. The biblical word for holiness carries the sense of being set apart — distinct, devoted, belonging to God. It is first and foremost a description of who God is, and only then a description of what He calls His people to become. To recover the weight of this word, the believer must let Scripture begin where Scripture itself begins: with the holiness of God.

Taking a Devotional View

Peter writes to scattered believers facing pressure to drift back into the patterns of their former life, and he reaches all the way back to Leviticus to ground his appeal: “But as he who called you is holy, you also be holy in all your conduct, since it is written, ‘You shall be holy, for I am holy.’” The order of the sentence is the heart of the matter. Peter does not begin with the command; he begins with the One who issues it. The God who has called His people is holy — perfectly pure, set apart in His own being from every shadow of sin. Because of who He is, His people are now called to a life that bears the family likeness. “In all your conduct” is comprehensive — not in the religious moments only, but in the whole of daily life. Holiness in this frame is neither rule-keeping for its own sake nor an unreachable ideal; it is the natural calling of those who belong to a holy God.

The same shape appears across Scripture. The Lord declared to Israel in the wilderness, “For I am the LORD your God. Consecrate yourselves therefore, and be holy, for I am holy” (Leviticus 11:44), and again, “You shall be holy, for I the LORD your God am holy” (Leviticus 19:2). Holiness is rooted in God's own character, never in the believer's achievement. Paul tells the Ephesians that this calling reaches all the way back into eternity past: God “chose us in him before the foundation of the world, that we should be holy and blameless before him” (Ephesians 1:4). And the New Testament makes clear that holiness is to be actively pursued in the believer's present life: “Strive for peace with everyone, and for the holiness without which no one will see the Lord” (Hebrews 12:14), and “let us cleanse ourselves from every defilement of body and spirit, bringing holiness to completion in the fear of God” (2 Corinthians 7:1). Holiness is not a status the believer earns; it is a life into which the believer has been called, and it is shaped by the very holiness of the God who calls.

Key Thoughts & Takeaways

Key Thoughts

  • Holiness is first a description of who God is, and only then a description of what He calls His people to become (1 Peter 1:15-16; Leviticus 19:2).
  • Biblical holiness means being set apart — distinct, devoted, belonging to God — not merely keeping a list of rules (1 Peter 1:15).
  • Holiness reaches into every part of life — “in all your conduct,” not only in religious moments (1 Peter 1:15).
  • The believer is called to actively pursue holiness, cleansing the life of what defiles, while resting in the One whose calling came before the foundation of the world (Ephesians 1:4; Hebrews 12:14; 2 Corinthians 7:1).

Ask Yourself

  • Do I think of holiness first in terms of God's character, or first in terms of rules I am expected to keep?
  • Are there areas of my conduct I have quietly excluded from the call to “be holy in all your conduct”?
  • Where is the holiness of God exposing a defilement I have been carrying without grieving?
  • Am I pursuing holiness as the natural calling of one who belongs to God, or treating it as optional?

Father, I thank You that You are holy — set apart, pure, glorious in Your own being — and that You have called me to belong to You. Forgive me for the ways I have shrunk holiness to a list of rules, or for the ways I have despaired of it as out of reach. Anchor me again in the truth that the call to be holy rests on the fact that You are. Cleanse what needs cleansing in my body and spirit, set apart what has drifted, and shape the whole of my conduct today into something that bears Your family likeness. In Jesus' name, amen.

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