It is curious that the Lord would care that people would believe in him. We think that leaders don't care if they are being followed, but in the case of the Lord this is not true.
It is curious too that G_d, who in this Parshat is said by Moses to be “slow to anger and abundantly kind, forgiving iniquity and transgression” would want to “strike them [the Egyptians] with a plague and annihilate them; then ... make you into a nation, greater and stronger than they.”
If I were to pick a G_d, it would not be one who would choose one people over another. Does the expression of this apparent injustice teach us what it feels to exhibit favouritism?