1 John 2:15; 1 John 2:24; 1 John 2:28

15 Do not love this world nor the things it offers you, for when you love the world, you do not have the love of the Father in you.
24 So you must remain faithful to what you have been taught from the beginning. If you do, you will remain in fellowship with the Son and with the Father.
28 And now, dear children, remain in fellowship with Christ so that when he returns, you will be full of courage and not shrink back from him in shame.