What this essentially boils down to is an intellectually bankrupt abuse of mathematical language.
I have taken several physics courses in college, so let's look at it from that angle. When we want to model a situation, we make sure to set up a differential equation and solve, making sure that the units are logical and that everything matches up. How does modeling god as infinity work exactly? In calculus, we use infinity as a concept to take limits, derivatives, and integrals.
In any case, in what respect would god be infinite? Cubic meters? Kilograms? Assholes that talk about him?