Irrational, to me, is following a set of rules purporting to be set by God, but lacking evidence that such is their source.
Oh but there is so much evidence...there is just no proof. Lack of proof does NOT prove lack of evidence.
No evidence???
The BIBLE IS EVIDENCE:
Acceptable to you or not it is the premier evidence and claim that GOD is involved with humans to redeem us from evil. The Book is there, it is real. I will give you a copy if you doubt its reality. It has been an amazing world influence out of proportion to its beginnings in the small dessert tribe from which it came.
THE LIFE OF CHRIST IS EVIDENCE:
Acceptable to you or not, the stories life of Christ have had a great impact upon whole cultures which proves its evidentiary status. Maybe good evidence or insufficient evidence but it is evidence.
THE INDWELLING HOLY SPIRIT IS EVIDENCE:
Acceptable to you or not, those who experience a direct interaction / conversation / influence of GOD in their lives and thoughts have this experience as evidence. We will not be gaslighted by those who claim we are untrustworthy and making things up, just because we accept the evidence we have seen which a skeptic has not yet seen.
THE CHANGE IN OUR VALUES SYSTEM IS EVIDENCE:
Acceptable to you or not, those who have been brought to repentance (had their eyes opened to their evil by being allowed to be evil until the suffering they have caused breaks them) and rebirth know they are different people and this metamorphosis is real and acceptable to them as evidence of GOD's work with them whether it can be argued it might be caused by other causes than GOD or not. All good things can be perverted to the use of evil by sinners, nothing is totally sacred on earth.
THE WITNESS OF PEOPLE WITH A SIMILAR EXPERIENCE IS EVIDENCE:
Acceptable to you or not, billions of people attesting to something is evidence. If they did not attest, there is no evidentiary value in their silence just like there is no evidence of a deity named HRUXIS because he has no book, no history of interaction with anyone, and no one attesting to his existence...no evidence!
A LACK OF EVIDENCE IS NOT PROOF OF A LACK OF REALITY:
For a hundred years sailors who made it as far as Australia reported seeing black swans. They were scorned by the British Naturalist Society as liars or hallucinators because
there was no evidence!...until there was. Someone finally got a carcass to Britain and this led to the the understanding of the logical fallacy that no evidence must mean no reality. This went down into history as the Black Swan fallacy.
NO EVIDENCE is often seen to mean 'no proof' in those writings about the roots of Christianity. No proof is the obvious meaning of no evidence when there is such an abundance of evidence for belief...but it is not universally accepted as useful evidence which seems to be the only proof that 'no evidence' accepts.
Peace, Ted