I write to you, fathers, because you know him who is from the beginning. I write to you, young men, because you have overcome the evil one. I write to you, little children, because you know the Father.
Now, this is a pretty strong statement, and we better give it careful attention. "If any man love the world, the love of the Father is not in him." Jesus said, "No man can serve two masters: for either he will hold to one and despise the other, or he will love the one and despise the other. You cannot serve God and mammon" ( Matthew 6:24 ). You cannot, not you should not, you cannot. And mammon, of course, is that worldly materialistic things, the monetary system of the world. You can't serve them both.