Atheist's often use 'knowing' and 'faith' as a line of argument against the believer.
They will say, you believe it, but you don't know it. I will tell them I do know it. But, because they don't know it, they can't possibly allow you to know it.
Their, the atheist's, knowing comes from the scientific method of learning. Seeing, and proving, and testing.
But, such methods cannot be applied to knowing God. God is only known if He wishes to be. He hides Himself. He reveals Himself at His will. And He opens the eyes of who He wants to, to see, to know, to believe. (
Matt. 16:17)
God reveals Himself to man through the Spirit to man's spirit. Thus the man whose eyes are opened believes, as he now knows. It is a knowing completely separated from the worlds method of knowing. But it is knowing none the less.
The atheist is void of such knowing. It makes no sense. Indeed the 'senses' of the flesh are not it's origin.
The believer who knows God and Christ, also knows the Word of God. The Bible is the Word of God. The believer knows it as He reads it. The miraculous work of the Holy Spirit takes that written Word of God and digests it into the life of the spirit of the believer as He wants to. The believer may not always be able to explain it. But he knows it.
If you believe, if you know, praise God, for He it is Who has opened your eyes.
Quantrill