New Revised Standard Version
but you do not believe, because you do not belong to my sheep.

Contemporary English Version
But since you are not my sheep, you don't believe me.

New American Bible
But you do not believe, because you are not among my sheep.

Douay-Rheims Bible
But you do not believe, because you are not of my sheep.

But you do not believe, because you are not of my sheep.

because.

John 10:4,27 And when he hath let out his own sheep, he goeth before them: and the sheep follow him, because they know his voice. . . .

John 6:37,44,45,65 All that the Father giveth to me shall come to me: and him that cometh to me, I will not cast out. . . .

John 8:47 He that is of God heareth the words of God. Therefore you hear them not, because you are not of God.

John 12:37-40 And whereas he had done so many miracles before them, they believed not in him: . . .

Romans 11:7,8 What then? That which Israel sought, he hath not obtained: but the election hath obtained it. And the rest have been blinded. . . .

2 Corinthians 4:3,4 And if our gospel be also hid, it is hid to them that are lost, . . .

1 John 4:6 We are of God. He that knoweth God heareth us. He that is not of God heareth us not. By this we know the spirit of truth and the spirit of error.