1 John 2:3

My Notes

What Does 1 John 2:3 Mean?

1 John 2:3 provides the simplest and most uncomfortable test of genuine faith: "And hereby we do know that we know him, if we keep his commandments."

The Greek en toutō ginōskomen hoti egnōkamen auton — "hereby we know that we know him" — is deliberately redundant. John uses the word know (ginōskō/oida) repeatedly to establish that genuine knowledge of God isn't abstract, intellectual, or mystical. It's verified by a specific marker: obedience. "If we keep his commandments" — ean tas entolas autou tērōmen. Tēreō means to guard, to observe carefully, to hold fast. Not just acknowledge. Keep.

John isn't describing perfection — his letter acknowledges that believers sin (1:8-9). He's describing direction. The person who knows God is moving toward obedience, not away from it. Their default trajectory is commandment-keeping. When they fail, they confess and return (1:9). The test isn't flawless performance. It's persistent direction.

The verse functions as a diagnostic, not a threat. John isn't trying to scare you into obedience. He's giving you a tool to evaluate whether your knowledge of God is real or theoretical. You say you know Him? Check your obedience. That's where the evidence lives.

Reflection Questions

• 1.If someone examined your obedience, would they conclude you genuinely know God — or just know about Him?
• 2.John's test is directional, not perfectionistic. Is your life moving toward obedience or away from it?
• 3.What's the difference between knowing about God and knowing God? How does obedience reveal which one you have?
• 4.Is there a specific commandment you've been ignoring that might be revealing a gap between your professed knowledge and your actual relationship?

Devotional

Do you know God? John says there's a way to verify: check your obedience.

Not your feelings. Not your theological precision. Not the intensity of your worship experiences. Your commandments. Are you keeping them? Not perfectly — John has already said anyone who claims sinlessness is a liar (1:8). But directionally. Is your life moving toward obedience or away from it? When you fail, do you confess and return, or do you rationalize and stay?

This verse is the antidote to a faith that lives entirely in the head. You can know everything about God — His attributes, His history, His theological categories — and not know Him. Knowing about God is information. Knowing God is relationship. And relationship, John says, is verified by obedience. Not because obedience earns the relationship, but because it's the evidence that the relationship is real.

Think about it in human terms. If someone said "I know my spouse deeply" but consistently ignored everything their spouse asked for, you'd question the claim. Not because requests are the foundation of marriage, but because a relationship that produces no responsiveness isn't much of a relationship. The same applies here. You say you know God. Does your life respond to what He says?

"Hereby we do know" — John gives this as assurance, not anxiety. If you find yourself keeping His commandments — imperfectly, with frequent stumbling, but persistently — that's the evidence. You know Him. The obedience proves the knowledge. And the knowledge produces more obedience. It's a spiral that goes up, not a treadmill that goes nowhere.

Commentary

Trusted original commentary from respected historical Bible scholars and theologians.

Cross References

Related passages throughout Scripture