AUV(i)
10 Here is [the essence of] love: [It is] not that we loved God [first], but that He loved us [See Rom. 5:6-8] and sent His Son to be a “covering over” [i.e., atonement, 2:2] for our sins.
11 Loved ones, if God loved us that much, we should also love one another.
12 No person has gazed upon God [at any time]; [but] if we love one another, God [continually] lives in our hearts, and His love is made complete within us.
13 This is [one way] to know we live in [fellowship with] God and that He lives in our hearts: [It is] because He has given us His Holy Spirit [to live within us, See 3:24].
14 And we [apostles] have seen and are [reliable] witnesses that the Father has sent the Son to be the Savior of the world [See 1:2; 2:2].
15 Whoever proclaims that Jesus is the Son of God, God [continually] lives in that person’s heart, and he lives in [fellowship with] God [See 2:23].
16 And we have known [with certainty] and have believed [with assurance] that God has truly loved us. God’s [very nature] is love and the person who [continually] loves [Him and others] lives in [fellowship with] God [continually], and God [continually] lives in that person’s heart.
17 Here is what a complete love will do for us: It will give us boldness in [facing] the judgment day, because the way Jesus acts [regarding love] is the way we should act [while] in this world.
18 There is no [reason for] fear if one [really] loves, but a complete love removes fear [from us] because fear produces punishment [i.e., mental anxiety], and the person who is [always] afraid does not have a complete love.