He who dwells in the secret place of the Most High
Shall abide under the shadow of the Almighty.
The word picture behind "shall abide" is "a tongue, becoming bound to life"
This is the process we refer to as "grafting in".
Quite simply, Christ is the rootstock and we are the scion. (See picture)
With this picture in mind I invite you to read John 15 and note every reference to the word "abide".