345. 'Having the seal of the living God' signifies Who alone has a knowledge of all [men] and of individuals, and is able to distinguish and separate them each one from the other. Since they were being sealed upon their foreheads with the seal, therefore by 'to have the seal of the living God', since it concerns the Lord, is understood to get to know all collectively and individually, and to be able to distinguish and separate the 'servants of God' from those who are not the servants of God.