Was Jesus the first to bring in 4th Density vibrations?

[Confused]

I do not know enough about Hinduism and their history, which is essentially why I brought this conversation here, to filter out things like this.

I had considered Buddha, but on reflecting on his main teachings it still seems like an advanced understanding of 3rd density. The cycle of birth, death and rebirth, eliminating Karma through many incarnations, the world as suffering, training of the mind to detach oneself from desire and the physical world.. Are these concerns of an entity in 4D? Whilst I think as far as world religions go, to the best of my knowledge Buddhism is the most peaceful and true to it's original teachings, did Siddhartha teach unconditional love and unity? <- (This is a legitimate question, did he?)

42.15 Questioner: Then the less sensitized entity should use … What should he use for the proper energy?

Ra: I am Ra. In the less sensitized individual the choosing of personally inspirational images is appropriate whether this inspiration be the rose which is of perfect beauty, the cross which is of perfect sacrifice, the Buddha which is the All-being in One, or whatever else may inspire the individual.