The ethics of Jesus was mainly that His believers should receive Him after His resurrection and learn to abide in Him. That is He would be living and available as an indwelling presence.
He says that He and His Father will come into the one who loves him and make an abode with them.
"Jesus answered and said to him, If anyone loves Me, he will keep My word, and My Father will love him, and We will come to him and make an abode with him." (John 14:23)
Jesus and His Father will come to His lover and make an abode with them.
The verb form of the noun abode is used in the next chapter. Jesus exhorts the disciples to ABIDE in Him.
"Abide in Me and I in you." (John 1:4a)
This unusual sentence means something like this - If we linger, abide, remain in Jesus, as a result Jesus will remain, linger and abide in us. This is not in any kind of sentimental sense. This is an actual presence of God in Christ Jesus within our innermost being.
If we learn to get into the realm of this Person, as a result of our learning to walk step by step abiding in Him, Jesus will get into our reactions, our attitudes, our tastes, our thought life.
"Abide in Me and I in you. As the branch cannot bear fruit of itself unless it abides in the vine, so neither can you unless you abide in Me." (v.4)
We have two important tracks. We have the Bible as the written word. Then we have the Holy Spirit which is Jesus Christ in His available and enterable "pneumatic" spiritual presence.
Paul wrote "the last Adam became a life giving Spirit" (1 Cor. 15:45)
Christ, in His resurrection, aside from His physical rising, also put Himself into a form in which He is available to be dispensed into man's innermost being. He became "a life giving Spirit" to GIVE divine life from within, to those in whom He abides.
This is a mingling, a union of men with an unusual Divine / Human Person who can blend His being with ours.