Here are some excerpts from On Loving God , by Bernard of Clairvaux: You want me to tell you why God is to be loved and how much. I answer, the reason for loving God is God Himself; and the measure of love due to Him is immeasurable love. He gave Himself for us unworthy wretches? And being God, what better gift could He offer than Himself? Hence, if one seeks for God's claim upon our love here is the chiefest: Because He first loved us (I John 4.19). But it is hard, nay rather, impossible, for a man by his own strength or in the power of free-will to render all things to God from whom they came, without rather turning them aside, each to his own account, even as it is written, For all seek their own' (Phil. 2.21); and again, The imagination of man's heart is evil from his youth' (Gen. 8.21). His Body sown in the grave has blossomed in the Resurrection (I Cor. 15.42); and in like manner our valleys and fields which were barren or frozen, as if dead, glow wi...