To this end

Pilate therefore said unto him, Art thou a king then? Jesus answered, Thou sayest that I am a king. To this end was I born, and for this cause came I into the world, that I should bear witness unto the truth. Every one that is of the truth heareth my voice. (John 18:37)

1/ To and an end and for a cause .
2/ To this end and cause .
3/ The identity of every one that is of the truth - They hear Christ's voice .