This paper introduces a new quantum gravity field equation that is derived from collision space-time. It show how changes in energy (collision-space) is linked to changes in matter (collision-time). This field equation can be written in several different forms. Gravity, at the deepest level, is linked to change in gravitational energy over the Planck time. In our view, this is linked to the collision between two indivisible particles, and this collision has a duration of the Planck time. We also show how an equation of the universe, that was recently derived from relativistic Newtonian theory, can also be derived in a new way from the quantum gravity field equation presented in this paper. This equation gives a new explanation for a cosmological redshift that does not seem to be related to expanding space or the big bang hypothesis. Also, the approximately 13.9 billion years of the Hubble time do not seem to be at all related to the age of the universe, but to the collision time of the mass in the universe.