These verses connect mature love with confidence rather than dread when thinking about “the day of judgment.” The text’s explicit claim is that love reaching its intended result “with us” produces boldness (v.17). It also explicitly ties fear to the expectation of punishment, which is why fear and mature love do not fit together (v.18). The closing line grounds the community’s love in God’s prior love (v.19).

The passage assumes that believers’ present life is meant to correspond to Christ in some real way: “as he is, so are we in this world” (v.17). That comparison functions as a reason for confidence.

Where interpretation differs

1) What “as he is, so are we in this world” means. Some read this mainly as a status/identity claim: believers share Christ’s standing as God’s children, so judgment is faced with confidence. Others read it more as a lived resemblance claim: believers’ life of love mirrors Christ’s character, and that lived pattern supports confidence.

2) What “punishment” in v.18 points to. Some take it primarily as future punishment at final judgment. Others include present inner torment—fear’s “punishment” as the distress that fear itself produces now—while still keeping final judgment in view.

3) The object of “We love … because he first loved us” (v.19). The wording in the provided text reads “We love Him,” which naturally points to love directed to God. Many note that the surrounding context stresses love for fellow believers (4:7–12), so the statement can be understood as broader: all true Christian love (toward God and toward others) is a response to God’s initiating love.

Why the disagreement exists

The key phrases are brief and can be read in more than one direction without changing the main point. “As he is” does not specify whether it means Christ’s present righteousness/status or his character expressed in love. “Punishment” can refer to final judgment or to fear’s current distress (or both). And v.19’s object varies across manuscripts and is also shaped by the larger paragraph’s focus on love for “one another.”

What this passage clearly contributes

It presents a tight logic: (1) love can reach a completed effect among believers (v.17), (2) that maturity produces confidence regarding judgment (v.17), (3) fear is linked to anticipating punishment and is therefore driven out as love reaches its goal (v.18), and (4) believers’ love is not self-generated but grounded in God’s earlier love (v.19). In context, this supports assurance within the community and frames love as the normal environment of Christian life, not fear. 1 John 4:17–19

love (agapōmen)