J Packer writes about the purpose of knowing God:

"For this very reason we need, before we start to ascend our mountain, to stop and ask ourselves a very fundamental question—a question, indeed, that we always ought to put to ourselves whenever we embark on any line of study in God's holy book. The question concerns our own motives and intentions as students. We need to ask ourselves: What is my ultimate aim and object in occupying my mind with these things? What do I intend to do with my knowledge about God, once I have it? For the fact that we have to face is this: If we pursue theological knowledge for its own sake, it is bound to go bad on us. It will make us proud and conceited. The very greatness of the subject matter will intoxicate us, and we shall come to think of ourselves as a cut above other Christians because of our interest in it and grasp of it; and we shall look down on those whose theological ideas seem to us crude and inadequate and dismiss them as very poor specimens. For, as Paul told the conceited Corinthians, "Knowledge puffs up⋯ The man who thinks he knows something does not yet know as he ought to know" (1 Cor 8:1-2)."