Christianity has many cases whereby if you don't experience the primary truth, you cannot know all the other truths that emerge from it. I call this the Algorithmic Nature of Christianity. An algorithm is a set of instructions or rules to solve a specific problem or perform a particular task. For example, the Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones (starting from 0 and 1). The algorithm involves defining the first two numbers and then generating subsequent Fibonacci numbers based on the sum of the last two. So, the sequence begins: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 and so on. Cooking is another example of something that's algorithmic, in that the recipe provides step-by-step instructions on how to make a meal. If you don't know the recipe for a dish, you can't know how to cook it.
Even more profoundly, the Algorithmic Nature of Christianity provides us with some incisive wisdom, especially regarding what atheists can't possibly see if they don't have or know certain things, and how Christians might bring this to their attention. This is important because Christians can spend inordinate amounts of time debating numerous topics surrounding God's existence, convincing and unconvincing evidence for the Christian faith, reliability of scripture, whether the world looks like God created it, philosophical, moral and ethical propositions around God's existence, and so forth. But while those discussions are interesting and worthwhile for augmenting our understanding, they are not what's fundamentally at play here when Christians and non-Christians discuss the truth of the faith. Because the Bible shows in several places that if non-Christians lack the algorithmic base for discovery and revelation, they cannot possibly arrive at the truths at which they claim they want to arrive.
Here are some examples. The issue with which the majority of atheists are preoccupied is why God seems invisible to them, and why, according to them, He's never given them the kind of personal appearance they crave. But Jesus declares in John 14:8-9 that anyone who has seen Him has seen the Father. He then reproaches Philip with the question "How can you say, 'Show us the Father'?". Atheists who utter the demand 'show me God' are making the same error. Additionally, in 1 John 2:23 we hear Jesus' truth restated "No one who denies the Son has the Father; whoever acknowledges the Son has the Father also". The algorithm here is basically "If you want to know God, you have to recognise that Jesus is Lord". That is, it's impossible to know God exists without having revelation that Jesus is God and the Saviour of the world (see also, John 14:6, where Jesus says, "No one comes to the father except through me"). All the time that unbelievers are arguing about the many things they argue about, they are merely formulating artificial distractions that are averting their attention from the crux of the matter.
The same is true with loving God; "Whoever does not love does not know God, because God is love" 1 John 4:8. The algorithm here is basically "To know God is to love Him, and to love Him is to recognise Jesus as Lord." If an individual does not know who Jesus is, they can't love God; and if they can't love God, it's impossible to know Him. This is confirmed further in 1 John 4:15 "If anyone acknowledges that Jesus is the Son of God, God lives in them and they in God."
Another example connected to 1 John 4:15 is that in order to know God, an individual has to have the Holy Spirit living inside them. St. Paul affirms in 1 Corinthians 12:3 that no one can say "Jesus is Lord" except by the Holy Spirit. The algorithm here is basically "If you don't have the Holy Spirit, you can't know God". That is, without recognising Jesus as Lord and without the Holy Spirit living inside of you, it's not possible to be aware of God's existence in any intimate way, because the personal encounter only comes from the Holy Spirit.
Now a third example, about the concept of sin; there is an algorithmic truth expressed in 1 John 1, which says, "If we claim to be without sin, we deceive ourselves and the truth is not in us." And right after, "If we claim we have not sinned, we make him out to be a liar and his word is not in us". The algorithm here is basically "To have the truth in us, and to apprehend the Bible as the word of truth, we must recognise the nature of our sin". If you don't acknowledge the truth of sin in the world, then you cannot recognise your own sin, and therefore, you cannot recognise the grace that saves us from sin. And not being able to recognise sin and grace means we cannot accept Jesus as Lord, and we cannot receive the Holy Spirit.
Just the above components of the Algorithmic Nature of Christianity already speak an awful lot about the barrier unbelievers have in recognising who God is. They will not find it possible to believe in God if they do not know who He is. Another algorithmic consideration is brought to bear in the quality of humility. Without humility, I do not believe we can have the door opened to knowing God (Road to Damascus encounters like St. Paul’s may provide the odd exception, but the rule generally holds). Proverbs 22:4 says, "The reward for humility and fear of the Lord is riches and honour and life", and in James 4:10 each of us is told "Humble yourselves before the Lord, and He will exalt you". The algorithm here is basically "If you want revelation and exaltation from God, you must seek with humility".
We can see already how all the above is connected algorithmically, where humility is what leads us to understand sin; and understanding sin is what leads us to understand the need for the grace of our Saviour; and recognising Jesus as our Saviour leads us to understand the price He paid for us on the cross; and from that we know God's truth through revelation imparted by our being in receipt of the Holy Spirit.
For the atheist, then, who persistently argues against the Christian faith with claims of not enough evidence or feeling devoid of any person revelation, the algorithmic considerations above are of paramount importance, because it is not possible for them to have their demands for God's existence and revelation satisfied if, algorithmically, they do not yet have the recipe required.
