Two plus to equals four, but why does “four" exist at all?

NUMBERS EXIST INDEPENDENTLY OF HUMAN MINDS
Numbers are abstract objects that exist conceptually even if no human ever thinks about them.
• For example: 2+2=4, whether anyone knows it or not.• Even before a single human existed to count, there was one sun in our solar system.Not four, not fifty, but one. Numbers are real, in a non-physical sense.
ABSTRACT, MIND-INDEPENDENT ENTITIES LOGICALLY REQUIRE A GROUNDING.
Something that exists, yet is non-physical and necessary, like numbers, cannot explain itself fully.
If numbers exist independently of humans, there must be a source or grounding for their existence that is itself eternal and non-contingent.
GOD PROVIDES THE NECESSARY GROUNDING FOR ABSTRACT OBJECTS
Abstract entities like numbers are immaterial, universal, and necessary.
They don't come into being and they don't change.
Numbers point to a rational, immaterial, and necessary source that is behind all abstract reality.
NUMBERS ARE NOT JUST USEFUL,
THEY ARE A WINDOW INTO THE ETERNAL MIND OF GOD.