The first situation is based in this simple idea: There is a God. But, the second is based in an energized inner reality which leaves one completely assured: There is a God in me!
Jesus put it this way. “If you love Me, keep My commandments. And I will pray the Father, and He will give you another Helper, that He may abide with you forever - the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you.
“I will not leave you orphans; I will come to you. A little while longer and the world will see Me no more, but you will see Me. Because I live, you will live also. At that day you will know that I am in My Father, and you in Me, and I in you.
“He who has My commandments and keeps them, it is he who loves Me. And he who loves Me will be loved by My Father, and I will love him and manifest Myself to him.” (Ref. John 14:15-21 NKJV)
The idea presented here is a simple one. Jesus is explaining to His disciples that they will eventually have a level of God awareness which the rest of the world will not share. And, as He indicates above, it will be an awareness based in a true personal merger with the Divine nature. And, this very natural connection will, in turn, bring into being a true oneness of heart with God
Jesus indicates that the requisite for this privileged access is simply an active humility, as indicated by a devoted obedience to His directions. Non-believers and "game players," on the other hand, are excluded from this access simply because they refuse to truly embrace the values and directions of Christ.
And, indeed, there are many who haughtily demand empirical proof of God before they will even believe in His existence, much less embrace His values and His express wishes. But, what Jesus is offering to those who do is a level of God awareness which makes empiricism entirely unnecessary, and obsolete. So, as Jesus indicates, the arrogantly self-sufficient (the "world") will simply remain oblivious to this inner personal intimacy with God.
Nevertheless, it is this Christ-furnished God-awareness, this wonderful "Sixth Sense," which makes our friendship with God truly vital and vibrant.
“I will not leave you orphans; I will come to you. A little while longer and the world will see Me no more, but you will see Me. Because I live, you will live also. At that day you will know that I am in My Father, and you in Me, and I in you." - Jesus