Ephesians 1:13

In whom ye likewise believed, after ye had heard the word of truth, the gospel of your salvation; in whom having believed, ye were also sealed by that Holy Spirit of promise,

Ephesians 4:30

And grieve not the Holy Spirit of God, whereby ye are sealed unto the day of redemption.

2 Timothy 2:19

But the foundation of God standeth fast, having this seal, The Lord knoweth those that are his: and, Let every one who nameth 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 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 likewise believed, after ye had heard the word of truth, the gospel of your salvation; in whom having believed, ye were also sealed by that Holy Spirit of promise,
Ephesians 4:30
And grieve not the Holy Spirit of God, whereby ye are sealed unto the day of redemption.
2 Timothy 2:19
But the foundation of God standeth fast, having this seal, The Lord knoweth those that are his: and, Let every one who nameth 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 voice to the four angels to whom it was given to hurt the earth and the sea,