1. Because you do not ask God (1-2)
Why do people fight and quarrel with others? It is because they have a war going on inside themselves. They want something, and they try to get it by any means. God's people should not struggle with men because of their desires. If we have a strong desire, we should ask God. He loves us. He did not spare even his own Son, but gave him up for us. If what we want is what we really need, he will give it to us--if we just ask him. He wants us to pray and to depend on him.
2. Because you have wrong motives (3-6)
Sometimes we do ask, but we don't receive. Why? It is because we have wrong motives. Worldly people make pleasure-seeking their main occupation. They are friends of the world, and a friend of the world is an enemy of God. Worldly pleasures only make us want more. A godless person is never satisfied. God alone can satisfy the desires of our hearts. He will do so if we ask him with pure and humble hearts.
Application: Thank you, Father, for giving me the desires of my heart. Teach me to pray.
One Word: Struggle with God, not men