John 3:33
he that hath received his testimony, hath set his seal to this, that God is true.
John 6:27
work not for the food which perisheth, but for that which endureth unto everlasting life, and which the son of man shall give unto you, for to him it is that the father, that is God, has given his credentials.
2 Corinthians 1:22
and mark'd me with his seal, and given me the earnest of the spirit in my heart.
Ephesians 1:13
by whom you also have heard the word of truth, the gospel of your salvation: and having believed in him, ye were mark'd with the seal of the holy spirit, which was promised:
Ephesians 4:30
grieve not the holy spirit of God, by whom you are sealed against the day of deliverance:
Revelation 7:2
and I saw another angel ascending from the east, having the seal of the living God: and he cried with a loud vioce to the four angels, to whom it was given to hurt the earth and the sea,
Revelation 9:4
and they were commanded not to hurt the fruits of the earth, nor any green thing, nor any tree; but those men who have not the seal of God in their foreheads.