Answer
There are five verses in the Bible that refer to a âseal of Godâ or an object or person sealed by God (John 6:27; 2 Timothy 2:19; Revelation 6:9; 7:2; and 9:4). The word sealed in the New Testament comes from a Greek word that means âto stamp with a private markâ in the interest of keeping something secret or protecting or preserving the sealed object. Seals were used for official business: a Roman centurion, for instance, might have sealed a document that was meant only for the eyes of his superior. If the seal were broken, the one receiving the document would know that the letter had been tampered with or read by someone other than the sealer.
Revelation 7:3–4 and 9:4 refer to groups of people who have the seal of God, and thus His protection, during the tribulation. During the fifth trumpet judgment, locusts from the Abyss attack the people of the earth with âpower like that of scorpionsâ (Revelation 9:3). However, these demonic locusts are limited in what they can harm: âThey were told not to harm the grass of the earth or any plant or tree, but only those people who did not have the seal of God on their foreheadsâ (Revelation 9:4). The individuals who are marked by God are preserved. The seal of God during the tribulation is the direct opposite of the mark of the beast, which identifies people as followers of Satan (Revelation 13:16–18).
Paul speaks of the seal of God in the context of foundational truth. He tells Timothy that false doctrines are circulating and some people are trying to destroy the faith of believers. Then he offers this encouragement: âNevertheless, Godâs solid foundation stands firm, sealed with this inscription: âThe Lord knows those who are his,â and, âEveryone who confesses the name of the Lord must turn away from wickednessââ (2 Timothy 2:19). The picture is of a buildingâs foundation that has been inscribed with two statements giving the purpose of the building. The churchâs foundation has been laid (Ephesians 2:20), and the eternal âsealâ or inscription sums up the two aspects of faith—trust in God and departure from sin (see Mark 1:15). The passage goes on to describe the contents of the great house so inscribed: vessels for honorable use and those for dishonorable use. âIf anyone cleanses himself from what is dishonorable, he will be a vessel for honorable use, set apart as holy, useful to the master of the house, ready for every good workâ (2 Timothy 2:21, ESV).
Jesus Christ bore the seal of God: âOn him God the Father has placed his seal of approvalâ (John 6:27). Those who trust in Jesus also possess the seal of God, which is the Holy Spirit: âYou also were included in Christ when you heard the message of truth, the gospel of your salvation. When you believed, you were marked in him with a seal, the promised Holy Spirit, who is a deposit guaranteeing our inheritance until the redemption of those who are Godâs possessionâ (Ephesians 1:13–14). It is good to know that Godâs children are sealed, secure, and sustained amid the wickedness of this transitory world.