1 Yohanes 4:8

4:8 The person who does not love does not know God, because God is love. ¹ 

1 Yohanes 4:19

4:19 We love ²  because he loved us first.

1 Yohanes 4:21

4:21 And the commandment we have from him is this: that ³  the one who loves God should love his fellow Christian ⁴  too.

[4:8]  ¹ tn The author proclaims in 4:8 ὁ θεὸς ἀγάπη ἐστίν (Jo qeo" agaph estin), but from a grammatical standpoint this is not a proposition in which subject and predicate nominative are interchangeable (“God is love” does not equal “love is God”). The predicate noun is anarthrous, as it is in two other Johannine formulas describing God, “God is light” in 1 John 1:5 and “God is Spirit” in John 4:24. The anarthrous predicate suggests a qualitative force, not a mere abstraction, so that a quality of God’s character is what is described here.

[4:19]  ² sn No object is supplied for the verb love (the author with his propensity for obscurity has left it to the readers to supply the object). The obvious objects that could be supplied from the context are either God himself or other believers (the brethren). It may well be that the author has both in mind at this point; the statement is general enough to cover both alternatives, although the following verse puts more emphasis on love for the brethren.

[4:21]  ³ tn The ἵνα (Jina) clause in 4:21 could be giving (1) the purpose or (2) the result of the commandment mentioned in the first half of the verse, but if it does, the author nowhere specifies what the commandment consists of. It makes better sense to understand this ἵνα clause as (3) epexegetical to the pronoun ταύτην (tauthn) at the beginning of 4:21 and thus explaining what the commandment consists of: “that the one who loves God should love his brother also.”

[4:21]  ⁴ tn See note on the phrase “fellow Christian” in 2:9.