Logic is a
very complex topic. Its laws are
very precise. Because of this, unfortunately, sharp minds can misuse logic (as every tool) for their own purposes, covering fallacious arguments with
some logical soundness, all the while only someone with an equivalent grasp of the matter can p(name removed by moderator)oint the error and unmask the argument.
God’s existence is a great example. Many members of the atheist religion base their faith in the nonexistence of God on the absence of evidence for His existence. Besides the fact that there is such evidence, let’s say none of it is valid in their eyes. Thus, having rejected all evidence as invalid, they claim there is no God. How unfortunate that this is an
argumentum ad ignorantiam, a logical fallacy in the form: “if you cannot prove your claim, then your claim is false”. While one should not accept premises without proof, absence of proof does not imply the premise is false: it merely means there is no (acceptable) proof to substantiate the evidence.
But someone somewhat learned in logic can ignore this and still make the claim for the purpose of deceiving those who don’t know it’s an erroneous way of reasoning. Another typical error is when we mention that many of the brightest scientists were Catholic, or that most of the human population has always believed in God (or in a supernatural, spiritual realm) and they employ logic to dismiss our argument by saying these are fallacious appeals to authority or to large numbers. True, but while that may not be valid evidence for God’s existence, they do reveal that there’s something odd going on, and that their arguments against Catholicism and against religion are not so obvious and reasonable, if (a) very sharp minds and (b) in general most of mankind believes in what they try to dismiss. It is possible that their post-XVIII religion (grouping in US about 2% of population, with 33% retention rate) is right and everyone else is wrong, but it’s a hard one to swallow.
Finally: who told you the unlimited became limited?

God is God, with no limitation. God however has a nature and acts according to that nature. This means that omnipotence does not allow for impossible things (such as creating a circular square, doing something evil, or going against the laws of logic). God can suspend the physical laws if He wills, but He simply can’t go against them or break them, for that would be nonsense.