impassibility

This is probably a dumb question and one that I swear I know the answer to, but right now I'm drawing a blank. I was recently talking to a guy who is more opposed to classical theism and I think one of his concerns was how exactly we can say that God loves us is He is impassible. If He is...

The Westminster Confession of Faith describes God as "without body, parts, or passions, immutable". The doctrine of Divine Impassibility is frequently neglected and/or denied, and little understood. De Moor here defends the historic orthodox doctrine. Do you find his reasoning convincing?