Whoever loves a brother or sister lives in the light, and in such a person there is no cause for stumbling.
References for 1 John 2:10
But whoever hates another believer is in the darkness, walks in the darkness, and does not know the way to go, because the darkness has brought on blindness.
References for 1 John 2:11
I am writing to you, little children, because your sins are forgiven on account of his name.
I am writing to you, fathers, because you know him who is from the beginning. I am writing to you, young people, because you have conquered the evil one.
I write to you, children, because you know the Father. I write to you, fathers, because you know him who is from the beginning. I write to you, young people, because you are strong and the word of God abides in you, and you have overcome the evil one.
Do not love the world or the things in the world. The love of the Father is not in those who love the world;
for all that is in the world—the desire of the flesh, the desire of the eyes, the pride in riches—comes not from the Father but from the world.
And the world and its desire are passing away, but those who do the will of God live forever.
References for 1 John 2:17
Children, it is the last hour! As you have heard that antichrist is coming, so now many antichrists have come. From this we know that it is the last hour.
They went out from us, but they did not belong to us; for if they had belonged to us, they would have remained with us. But by going out they made it plain that none of them belongs to us.
But you have been anointed by the Holy One, and all of you have knowledge.
References for 1 John 2:20