A Short Explanation of the

...powerless flesh; it makes it so that Man is not far from the Kingdom of God:
Mark 12:34

Since Jesus is the only Guide into the Kingdom of God for man; if Jesus is now the Forerunner A leader who goes before others to show the way to lead man into His Kingdom, then man surely knows his Forerunner well: he knows the appearance of the King of the Kingdom, and he loves the King of the Kingdom alone.
Hebrews 12:2

12. Thus it now appears clearly that this Lawyer Wetgeleerde: a scholar or scribe specialized in the Mosaic Law did not know Jesus; truly, he would not have asked the Lawgiver himself, and his King, his only Lord and God, about the first and great Commandment; for he would have known that He alone knew the Commandment of Love, and also alone fulfilled all the Laws of the Kingdom, and had come into the world for that purpose, and furthermore, that He alone walked in this perfect love, and was the Father’s Perfect Love.
Matthew 5:17

Luke 3:22

13. Therefore it follows that whoever does not fulfill all the Laws of the Kingdom, breaks and despises them; such a person is then a Transgressor and deserves death; and therefore he can in no way be tolerated in this Kingdom; for there, no one is permitted who gives even the slightest offense in God’s Kingdom: and therefore, if the Law is performed and followed, it leads up to the Promised Land, up to God’s Kingdom, and the Kingdom is shown to them by God from a distance.
Matthew 13:41

Deuteronomy 34:1, 4