Let that therefore abide in you, which ye have heard from the beginning. If that which ye have heard from the beginning shall remain in you, ye also shall continue in the Son, and in the Father.
Let that - truth respecting he Father and the Son, as a seed not merely dropped in, but having taken root (1 John 3:9).
Ye - standing emphatically at the beginning of the Greek sentence. YE, therefore, acknowledge the Son, so shall ye have the Father also (1 John 2:23).
From the beginning - of the Gospel being preached to you.
Remain - `abide.'
Ye also - in your turn: distinguished from 'that which ye have heard,' the seed abiding in you. Compare 1 John 2:27, "the anointing ... abideth in you ... ye shall abide in Him." Having taken into us the living seed of truth concerning the Father and the Son, we become transformed into the likeness of Him whose seed we have.