In the Book of Revelation, those who keep the commandments of God and have the faith/testimony of Jesus are identified as:
the saints, the remnant of her seed, and those who are given right to the tree of life and enter the into the New Jerusalem.

Rev 12:17  And the dragon was wroth with the woman, and went to make war with the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.

Rev 14:12  Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus.

Rev 22:14  Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city.

The Lord God Almighty and the Lamb are returning soon to eventually establish a kingdom that will last for ever and ever.
Those who have obeyed the commandments of God and have the faith/testimony of Jesus will be saved.
All who have done and remained in wickedness will be destroyed in the lake of fire.

Rev 20:15  And whosoever was not found written in the book of life was cast into the lake of fire.

Rev 21:8  But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death.

We are to turn to God with all that we are, seek Him and do His will … and believe in His Son.

Joh 3:16  For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. 

 

Turn to righteousness and be saved;
keep the commandments of God,
and have faith/testimony of Jesus Christ.

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Read Revelation chapters 21 & 22, and Daniel chapter 2.