Mark of the Beast or the Seal of Yahoveh God?

In the Book of the Revelation we see two mysterious signs, people will receive, the "mark of the beast" or the "seal of God". The Scripture clearly tells us that those with the 'mark of the beast' will end up in the 'lake of fires with burning brimstone'. Yet those with the 'seal of God' will end up in the New Jerusalem eating from the tree of life. ,

Revelation 12:9a, "... that old serpent, called the Devil, and Satan, which deceives the whole world ..." Revelation 13:3b, "... and all the world wondered after the beast." Most all Christians are worshiping the beast today, and think that they worship the true God. I will show you their deception in the Scripture, so you will be able to avoid it and receive the seal of God.

The last few pages of this book deal with God's sacred name. Most of the Jews say it is too holy to use. Most of the Christians don't know it, Yet the Scriptures commands us to call on God with that name.