Where did the universe come from? Atheistic origin science has no answer.

[Jackalope]

Yeah, wtf is "atheistic origin science?" I heard that a lot of atheists originated from reading the Bible, is that what you mean?

Scientific consensus, however, is rather content with the idea of singularity then universe. And has been mentioned, it is a model based on General Relativity where the equations only make sense for values of time t>0.

Scientific consensus is also pretty content with the of causal origin at singularity, i.e. that before has no meaningful context. And these answers may not be emotionally satisfying, but these are the answers that work. These are the answers that haven't been shown to be, as yet, wrong.

Unlike creation myths - which have all been shown to be myth.

God is supra-dimensional to the cosmic timeline. He is not usher along by it's one-directional cause-effect property or control by it in anyway. It is known by deductive reasoning that He has access to at least to two dimensions of time and probably a time plane where He is able function with an infinite amount of time dim's.

"Known by deductive reasoning"?

Prove it, snowflake.