Don't misunderstand, I believe we have plenty of Christian evidences: evidences that point to the existence of a higher power. I won't spend the space here to go into the mountain of evidence for God's existence. It is overwhelming.
But to argue for Christian evidences is to allow ourselves to be pulled down into a useless debate. Atheists have no evidence for their position. Much like climate change data their evidence is based on fallacies. Evolution? A joke, much of Darwin's own evidence was fraudulent. Dating methods? All are like farting in the wind and trying determine what you had for lunch. The age of the earth? See point two, but even things like the Grand Canyon can be explained. Dinosaurs? Please, we have rehashed that for decades, and the existence of dinosaurs no more disproves the Bible than any other extinct animal.
Allowing ourselves as believers to get pulled into those debates lends too much credence to the atheistic viewpoint. In the end, faith is a very important part of being a Christian, evidence or no evidence. And faith is the deciding factor in this debate because despite not admitting to it, atheists have accepted much of their "evidence" on "faith".
That last point is the key. What atheists have is faith in their beliefs. They try to say it isn't faith, but that is all they really have. Even by the Biblical definition of faith, atheists have faith, misguided as it is, in their "evidence" without any real proof.
Now faith is the substance of things hoped for, the evidence of things not seen.
In the end all of the faux evidence atheists have are the substance of things hoped for, the evidence of things not seen. Faith. It is faith in the erroneous, but a faith none the less. Of course, atheists will argue to the death against the idea that what they have is faith in their beliefs because they know that if they ever admit to that then the debate is over. They will have lost.
Faith to a Christian is what all else is based on. In the end, even if we had no other evidence, our faith would be sufficient for believing in God, in his Son, and in His Word that we have in book form today. Faith is more important than evidence. (This is true for the atheist too because they have no real evidence, but again they will never admit to this.) Our faith in God's Word is what defines our Christianity.
I don't know why God wanted faith to be so important. If He wanted to He could make it clear, in no uncertain terms, that He exists and that He created everything, and that His son came to the earth just like His Word says He did. But God doesn't do this. The reason? He WANTS us to base our lives on faith.
But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
Where is the value in placing faith in something that doesn't require faith? For instance, I know that if I set an object down on my desk, as long as nothing moves that object then it will remain on my desk. (Scientific fact: An object at rest will remain at rest until acted upon by an outside force.) But there is no value in expressing faith in that because that is a fact in no uncertain terms.
The fact is that God wants us to have faith, no, He requires us to have faith. We can choose what to put our faith into, but to put our faith into something other than His existence is foolish.
The fool hath said in his heart, There is no God.
Not only do I have faith in God's existence, but I have faith in the foolishness of atheists. One day they will know that God exists, unfortunately for them it will be too late.
For it is written, As I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God. So then every one of us shall give account of himself to God.
So on the Day of Judgment, God will reveal His existence in no uncertain terms. For those that had faith in His existence, and were obedient to His will, there will be reward. For those that put their faith in His non-existence, there will be condemnation. I pray that all will accept His existence, and come to a knowledge and understanding of His word.