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:

2 Timothy 2:19

however, the foundation of the divine architect is still immoveable, having this inscription, " the Lord discerns who are his." and, " let every one that invokes the name of the Lord, depart from iniquity."

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,

Treasury of Scripture Knowledge

Summary

With the work of an engraver in stone, like the engravings of a signet, shalt thou engrave the two stones with the names of the children of Israel: thou shalt make them to be set in ouches of gold.

Bible References

Engravings of a signet

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:
2 Timothy 2:19
however, the foundation of the divine architect is still immoveable, having this inscription, " the Lord discerns who are his." and, " let every one that invokes the name of the Lord, depart from iniquity."
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,