345. Having the seal of the living God. This symbolically means, who alone knows the character of each and every person, and can distinguish and separate them from each other.
Since they were sealed on their foreheads with the seal, therefore having the seal of the living God, being said in reference to the Lord, means to know the character of each and every person, and to be able to distinguish and separate the servants of God from those who are not servants of God.