Your God may not be dispassionate, but a Christian God is. He is because He is impartial, and immutable. This is, of course, all alien to those who look at God through anthropomorphic eyes of the Old Testament and see God as a moody giant.
"God is good, dispassionate, and immutable. Now someone who thinks it reasonable and true to affirm that God does not change, may well ask how, in that case, it is possible to speak of God as rejoicing over those who are good and showing mercy to those who honor Him, and as turning away from the wicked and being angry with sinners. To this it must be answered that God neither rejoices nor grows angry, for to rejoice and to be offended are passions; nor is He won over by the gifts of those who honor Him, for that would mean He is swayed by pleasure. It is not right that the Divinity feel pleasure or displeasure from human conditions." (A. Kalomiros, "River of Fire")
Ummmmm....since our Lord Jesus was fully man as well as fully God, isn't He subject to all the human emotions we face?