"In contrast to the mark of the beast, God’s true followers will receive the seal of God, which is keeping the true Sabbath.
Seals were used in ancient times to attest to the authenticity of official documents. We would then expect to find God’s seal embedded in His law.
Ancient seals were a distinctive individualized mark. Isaiah the prophet says, “Bind up the testimony, seal the law among my disciples” (Isa. 8:16, NKJV).
----The Fourth Commandment contains three elements of an 
authentic seal.
First, the name of the sealer: “The LORD your God” (Exod. 20:10, NKJV).
Second, the title of the sealer: the Lord who “made,” (Exod. 20:11) or the Creator.
And third, the territory of the sealer: “the heavens and the earth, the sea, and all that is in them” (Exod. 20:11, NKJV).
----According to Revelation 7:1-3, the seal of God is placed only on our foreheads, a symbol of our minds. Thus, we understand that the faithful are those who “keep the commandments of God, and have the faith of Jesus” (Rev. 14:12), and included in those commandments is the fourth.
Although the beast seeks to change times and laws (Dan. 7:25), God’s commandments stand forever."
DavidRead/Fulcrum7