So much god-talk strikes me as little more than sentimental fancy or the projection of our own prejudices onto the cosmos. A lot rhetoric about god sounds like an "opiate of the people" as Karl Marx famously charged. As such, it is ephemeral and hard to hold onto.
But, then there is the cross. If, as Christians profess, God, in some mysterious way, hung on a particular cross in a particular time and a particular place, there is something to hold onto. The idea that the One at the heart of it all - the creator and sustainer of all things - entered into the physical reality of sin, suffering, and death and addressed that reality on the cross is what creates and sustains my ability to believe in God at all. The cross anchors me. It keeps my faith from becoming detached from the hard realities of this life. It also anchors God in the sense that it gives God a basic definition that challenges all expressions of faith as flights of fancy. Whatever else we might say about God, if it neglects the reality of the cross, it not really God we are talking about.
Be sure to also check out the quotes Fr. Matt shares on the centrality of the cross for authentic Christian faith.