John 10:30

Verse 30. I and the Father are one, [2] or one being, not one person, nor one by an union of affection only, but in nature, substance, power, and other perfections, as appears by the whole text: for Christ here tells them that none of his elect shall perish, because no one can snatch them out of his hands, no more than out of the hands of his Father: and then adds, that he and his Father are one, or have one equal power: and if their power, says Saint John Chrysostom is the same, so is their substance. Christ adds, (verse 38) that the Father is in him, and he in the Father; which also shews an union of nature and substance, and not only of love and affection, especially when taken with other words of our Saviour Christ. Witham.