Ephesians 1:13

In whom ye also trusted, when ye heard the word of truth, the gospel of your salvation: in whom also when ye believed, ye were sealed with the holy Spirit of promise,

Ephesians 4:30

And grieve not the holy Spirit of God whereby ye are sealed to the day of redemption.

2 Timothy 2:19

However, the foundation of God standeth firm, having this inscription, The Lord knoweth them that are his; and, Let every one that nameth the name of Christ depart from iniquity.

Revelation 7:2

And I saw another angel which ascended from the east, having the seal of the living God: and he cried with a loud voice 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
In whom ye also trusted, when ye heard the word of truth, the gospel of your salvation: in whom also when ye believed, ye were sealed with the holy Spirit of promise,
Ephesians 4:30
And grieve not the holy Spirit of God whereby ye are sealed to the day of redemption.
2 Timothy 2:19
However, the foundation of God standeth firm, having this inscription, The Lord knoweth them that are his; and, Let every one that nameth the name of Christ depart from iniquity.
Revelation 7:2
And I saw another angel which ascended from the east, having the seal of the living God: and he cried with a loud voice to the four angels, to whom it was given to hurt the earth and the sea,