But what if the sentence above is interpreted as follows: Jesus(pbuh) is identified with the unity of God and man and this holds good for other personalities as well which too can be identified the same way. By transitivity, all distinctions blur between such personalities, their individualities vanish and only God remains, and whoever is approaching God is approaching God through all such personalities, including Jesus(pbuh).
ok, that is a philosophical way of looking at it
However, think about the ancient Isrealites. God sent them Moses as a mediator of a covenant between the people and God. God was with the Isrealites 'thru' moses and Moses leadership led the people to God.
While the people remained with Moses, they were protected by God, if they left Moses, they were cut off from the nation and lost Gods favor.
We have to accept that God chooses the way to approach to him, not us. Now Jesus is the one promised in hebrew scripture to be 'a prophet like moses' and the jewish diciples of Jesus knew this fact and they preached it.
Acts 3:19
Repent, therefore, and turn around so as to get YOUR sins blotted out, that seasons of refreshing may come from the person of Jehovah 20 and that he may send forth the Christ appointed for YOU, Jesus, 21 whom heaven, indeed, must hold within itself until the times of restoration of all things of which God spoke through the mouth of his holy prophets of old time. 22 In fact, Moses said, Jehovah God will raise up for YOU from among YOUR brothers a prophet like me. YOU must listen to him according to all the things he speaks to YOU. 23 Indeed, any soul that does not listen to that Prophet will be completely destroyed from among the people.
You see, just as Moses was the one God used to lead people to him in ancient times, Jesus is the one he uses in our times... it is our choice whether to accept Gods way or reject it. He will judge us on how we treat his chosen one.