please elaborate.

What evidence? I do not believe in leprechauns, pixies, werewolves, jujus, angels, Tooth Faeries, Odin, Thor, Zeus, Ra, Brahma, Athena, Hera, Poseidon, Yahweh, Allah, or the Trinity, demons, devils, or Satan. For the same reason in every case: there is not the tiniest shred of 𝐚𝐧𝐲 𝐟𝐨𝐫𝐦 𝐨𝐟 𝐥𝐨𝐠𝐢𝐜𝐚𝐥, empirical, 𝐡𝐢𝐬𝐭𝐨𝐫𝐢𝐜𝐚𝐥, 𝐨𝐫 𝐜𝐨𝐫𝐫𝐨𝐛𝐨𝐫𝐚𝐭𝐢𝐧𝐠 𝐞𝐯𝐢𝐝𝐞𝐧𝐜𝐞 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐞𝐱𝐢𝐬𝐭𝐞𝐧𝐜𝐞 𝐨𝐟 𝐆𝐨𝐝 and the burden of proof lies with believers. We can make a case for some unspecified "intelligent designer" or "prime mover" or begetter of "something rather than nothing"? By far the most appealing version of this argument is the biological one - living things do present a powerful illusion of design. But that is the very version that Darwin destroyed. Any theist who appeals to "design" of living creatures simply betrays his ignorance of biology. Go away and read a book. And any theist who appeals to biblical “evidence” betrays ignorance of biblical scholarship. The burden of proof rests with those who wish to believe. Even given no evidence for specific gods, could 'his ignorance of modern scholarship. Go away and read another book. As for the cosmological argument, whose God goes under names such as Prime Mover or First Cause, the physicists are closing in, with spell-binding results. Even if there remain unanswered questions - where do the fundamental laws and constants of physics come from? Obviously, it cannot help to postulate a designer whose existence poses bigger questions than he purports to solve. If science fails, our best hope is to build a better science. The answer will lie neither in theology nor - its exact equivalent - reading tea leaves. In any case, it is a fatuously illogical jump from deistic Unmoved Mover to Christian Trinity, with the Son being tortured and murdered because the Father, for all his omniscience and omnipotence, could not think of a better way to forgive "sin". Equally unconvincing are those who believe because it comforts them (why should truth be consoling?) or because it "feels right". The wife of a former UK prime minister may stand for the” feels right” brigade. She based her belief on “an understanding of something that her head cannot explain but my heart knows to be true.” She aspired to become a judge! My’lud, I cannot provide the evidence you require. My head cannot explain why, but my heart knows it to be true. Why is religion immune to the critical standards we apply not just in our courts of law, but in every other sphere of life?

Okay, but the question I am being asked is what are the most convincing arguments for their being a god?

And my response is, is that science has redone a thing that God was claimed to have done, and it created matter.

If you are not a biblical literalist, if you can accept the idea that the Bible is correct, but not flawless in its data communication, then it has at least the tiniest little spider's web strand of reason that says that the hermit Moses, seven-odd-thousand years ago, received some sort of divine revelation that contained information that was later proven to be scientifically true, which lends at the very least a mote of dust worth of credence to the existence of God.

Ha. Loser.

You don't need science to know there are no "gods". Just need to stop being a gullible moron.