John Piper considers the question “Should our love for God be more like the love between a child and a father or the lover between two lovers?”:
What you look for for health—in a soul and in a church—is biblical proportion. So when it comes to intensity, it is high level intensity on each of the kinds of relationships. When it comes to which relationship is emphasized, let’s read the whole Bible and try to shape our hearts and our minds around the kinds of relationships that are highlighted in the Scriptures.
See his whole answer here.