I write these things to you who believe in the name of the Son of God, that you may know that you have eternal life.

A sampling of what John wrote to guide me:

Whoever loves his brother abides in the light, and in him there is no cause for stumbling. 1 John 2:10

Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him.1 John 2:15

And this is his commandment, that we believe in the name of his Son Jesus Christ and love one another, just as he has commanded us. Whoever keeps his commandments abides in God, and God in him. And by this we know that he abides in us, by the Spirit whom he has given us. 1 John 3:23-24

Beloved, let us love one another, for love is from God, and whoever loves has been born of God and knows God. Anyone who does not love does not know God, because God is love.In this the love of God was made manifest among us, that God sent his only Son into the world, so that we might live through him. In this is love, not that we have loved God but that he loved us and sent his Son to be the propitiation for our sins. Beloved, if God so loved us, we also ought to love one another. No one has ever seen God; if we love one another, God abides in us and his love is perfected in us. By this we know that we abide in him and he in us, because he has given us of his Spirit. 1 John 4:7-13