Gnosticism & The Kabbalah - What Common Feature Do They Share?

As with many cults which deal in 'secret knowledge', we see here something which is the very antithesis of Christianity.
Salvation does not come from the learning of secrets but acting upon something which is offered freely to all.
Accept that God The Son died on the Cross taking 'the fall' for YOUR sins and He was resurrected thus beating death itself.

Centre Of Gnostic Heresies.

Give yourself to Him. It ain't no secret!