“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.” Revelation 12:17, KJV
I have no doubt that end-time saints will receive a special blessing from God for keeping His commandments. This blessing will keep them strong in the faith of Jesus and allow them to see through end-time doctrinal deceptions. But this does not mean that God’s people are saved by commandment keeping, or that only Seventh-day Sabbath keepers will be saved in the end times. Obedience to divine law is a prescription for receiving the strength that will be needed to maintain genuine faith in Jesus Christ during the final tribulation.
This text does not mean that only Adventists will be in heaven:
“…Adventists repudiate emphatically and unequivocally any thought that they alone are children of God and have a claim upon heaven. They believe that all who worship God in full sincerity, that is, in terms of all the revealed will of God that they understand, are presently potential members of that final “remnant” company mentioned in ch. 12:17. Adventists believe that it is their solemn task and joyous privilege to make God’s last testing truths so clear and so persuasive as to draw all of God’s children into that prophetically foretold company that is making ready for the day of God” (Nichol, 1980,p. 815).
In Revelation 12:17, the Holy Spirit has revealed the hatred that Satan will have towards the commandment keeping people of God. They will be the target of relentless pursuit by the devil and his angels. Because there is a blessing in obedience to the commandments of God, those who are willing to die instead of compromising the truth of God’s word will be given special insight and strength to gain victory over the forces of darkness during the final days of earth’s history.
But the conditions of salvation will always be about maintaining faith in Jesus Christ who shed His blood for our sins. God’s people are not given victory because of their obedience to the law, but because of their refusal to compromise the message of the blood atonement of Jesus Christ: “And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death.” Revelation 12:11
Nichol, F. D. (Ed.). (1980). The Seventh-day Adventist Bible Commentary (Vol. 7, p. 815). Review and Herald Publishing Association.