Revelation 9:4
They were told not to harm the grass of the earth or any plant or tree, but only the men who did not have the mark of God's seal upon their foreheads.
2 Corinthians 1:22
and put his seal upon us and given us his Spirit in our hearts, as earnest-money.
Revelation 14:1
Then in my vision I saw the Lamb standing on Mount Zion, and with him 144,000 people who had his name and his Father's name written on their foreheads.
Revelation 7:2-3
Then I saw another angel ascend from the east with the seal of the living God, and he cried out in a loud voice to the four angels who had it in their power to harm the earth and the sea,
2 Timothy 2:19
Yet God's solid foundation stands unshaken, bearing this inscription, "The Lord knows those who belong to him," and "Everyone who uses the name of the Lord must give up evil."
Revelation 20:4
Then I saw thrones with beings seated on them, who were empowered to act as judges. And I saw the souls of those who had been beheaded on account of the testimony of Jesus and the message of God, who refused to worship the animal and its statue, and would not have its mark put on their foreheads or on their hands. They were restored to life and reigned with the Christ a thousand years.
2 Corinthians 12:21
and that when I come back my God may humiliate me before you, and I may have to mourn over many who have kept on in their old sins and have never repented of the impurity, immorality, and sensuality in which they have indulged.
Ephesians 4:30
You must not offend God's holy Spirit, with which you have been marked for the Day of Redemption.
Revelation 13:6-7
It opened its mouth in blasphemies against God, blaspheming his name and his dwelling-place, that is, those who live in heaven.