15 Do not love the world nor the things in the world. If anyone loves the world, the love of the Father is not in him. 16 For all that is in the world, the lust of the flesh and the lust of the eyes and the boastful pride of life, is not from the Father, but is from the world.
17 The world is passing away, and also its lusts; but the one who does the will of God lives forever.
1 John 2:15-17 (NASB)
First, in verse 17a he says, “And the world passes away, and the lust of it.” Nobody buys stock in a company that is sure to go bankrupt. Nobody sets up house in a sinking ship. No reasonable person would lay up treasure where moth and rust destroy and thieves break in and steal, would they? The world is passing away! To set your heart on it is only asking for heartache and misery in the end.
That’s not all: not only is the world passing away, but also the lusts of it. If you share the desires of the world, you will pass away. You will not only lose your treasure. You will lose your life. If you love the world, it will pass away and take you with it. “The world passes away and the lust of it.”
Second, in verse 17b John says, “But he who does the will of God abides for ever.” The opposite of loving the world is not only loving the Father (verse 15), but also doing the will of the Father (verse 17). And that connection is not hard to understand. Jesus said, “If you love me you will keep my commandments” (John 14:15). John said in 1 John 5:3, “For this is the love of God, that we keep his commandments.” So loving the Father in verse 15 and doing the will of God in verse 17 are not really separate things.
If you love God, you will love what he wills. It is empty talk to say I love God but I don’t love what God loves. So John is saying in verse 17, “If you love the world, you will perish with the world, but if you don’t love the world but love God, you will do his will and live with him for ever.”
In summary, then, the text contains one commandment and three arguments, or incentives. The commandment is, “Don’t love the world or the things in the world.” The first incentive is that if you love the world, you don’t love God. The second incentive is that if you love the world, you will perish with the world. And the third incentive is that if you love God instead of the world, you will live with God forever.