Can A Christian or anyone please explain this Bible Verse?

The problem here is that first JEHOVA AND JESUS,ARE TWO DIFFERENT PERSONS JOHN 1:18 says that no man has ever seen Jehova and when JESUS CAME TO EARTH HE WAS SEEN BY EVERYONE SO THEY CANT BE THE SAME PERSON and that is the reason why JESUS SAID NOT ANYONE WHO JUST SAYS LORD LORD WILL ENTER THE KINGDOM . . . BUT THE ONE WHO,DOES WHAT HIS FATHER JEHOVA SAID TO DO you can ask a Jehova witness for more info