You [Gentiles] also, who are in Christ, after having heard the message of truth, the good news about your salvation, and [after] believing in Him, were sealed [i.e., as evidence of ownership] with the promised Holy Spirit. [or, "the Holy Spirit who brings promises"].

And do not grieve God's Holy Spirit by whom you were sealed [i.e., given evidence of God's ownership] until the day of redemption [i.e., until you receive your new body in heaven. See 1:14].

However, the solid foundation of God stands firm. [Note: This probably refers to the church. See I Tim. 3:15]. It is sealed with these words [i.e., certifying God's ownership and a commitment to Him]: "The Lord knows those who are His people," [See Num. 16:5], and "Everyone who confesses the name of the Lord should stop practicing wickedness." [See Isa. 36:13].

Then I saw in the right hand of God, who sat on His throne, a book with writing on the inside and on the back, and sealed with seven seals.

saying, "Do not harm the land, or the ocean, or the trees, until we have sealed the servants of our God [with a mark] on their foreheads."

Then I heard the number of those who were sealed. [It was] one hundred forty-four thousand [in all] from every tribe of the Israelites [Note: This could refer to Christians of Jewish descent].

There were twelve thousand sealed from the tribe of Judah, twelve thousand from Reuben, twelve thousand from Gad,

He threw him into the pit, and closed it and sealed it over him, to keep him from deceiving the nations anymore until the thousand years were ended. After that time, he must be released for a short while.