I am the true vine, and my Father is the husbandman. By a figure familiar to Jewish ears (Isaiah 5:1-7; Ezekiel 15:1; etc.) Jesus here beautifully sets forth the spiritual Oneness of Himself and His people, and His relation to them as the Source of all their spiritual life and fruitfulness.
I am the true vine - of which the natural vine is no more than a shadow.
And my Father is the farmer - the great Proprietor of the Vineyard, the Lord of the spiritual Kingdom.