Thomas, the following insights lead me to believe it is important for people to understand the truth about Sabbath-keeping and soul-sleep:

LDE 157
The saints must get a thorough understanding of present truth, which they will be obliged to maintain from the Scriptures. They must understand the state of the dead, for the spirits of devils will yet appear to them, professing to be beloved friends and relatives, who will declare to them that the Sabbath has been changed, also other unscriptural doctrines.--EW 87 (1854). {LDE 156.3}

The apostles, as personated by these lying spirits, are made to contradict what they wrote at the dictation of the Holy Spirit when on earth. They deny the divine origin of the Bible.--GC 557 (1911). {LDE 157.1}

Through the two great errors, the immortality of the soul and Sunday sacredness, Satan will bring the people under his deceptions. While the former lays the foundation of spiritualism, the latter creates a bond of sympathy with Rome.--GC 588 (1911). {LDE 157.2}

Persons will arise pretending to be Christ Himself, and claiming the title and worship which belong to the world's Redeemer. They will perform wonderful miracles of healing, and will profess to have revelations from heaven contradicting the testimony of the Scriptures. . . . {LDE 157.3}

But the people of God will not be misled. The teachings of this false christ are not in accordance with the Scriptures. His blessing is pronounced upon the worshipers of the beast and his image, the very class upon whom the Bible declares that God's unmingled wrath shall be poured out.--GC 624, 625 (1911). {LDE 157.4}

As I cannot make anyone accpet or reject sabbath or soul-sleep, being over the edge concerned with it seems like a waste of time to me. Bring the person to Jesus and He will teach them all that they need to know. I have not been called to gather diciples of my own, merely to introduce others to the Lord. He will call them as His own diciples in due time. The Lord is Jesus and not any right belief about any subject, including sabbath or souls. So why does Jesus wait? Peter was of the opinion that Jesus waits until such a time when no more people will choose Life. Obviously there are still people who are willing to choose God if they are introduced to Him.

My sheep hear My voice, and I know them, and they follow Me. (John 10:27)

TV: One is, knowing the true voice of the sheepherd is a better defence against imposters than any amount of secondary knowledge.

MM: How do you discern between voices? If a voice or spirit tells you to keep the Sunday instead of the Sabbath day, how do you know if it is telling you the truth? If a voice or spirit tells you to turn in Sabbath-keepers to the authorities, during the upcoming Sunday-Sabbath crisis, how do you know if it is the right thing to do?

Does the Gospel Commission apply to you personally? "Teaching them to observe all things whatsoever I have commanded you."

Matthew
28:18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
28:20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, [even] unto the end of the world. Amen.

TV: One is, knowing the true voice of the sheepherd is a better defence against imposters than any amount of secondary knowledge.

MM: How do you discern between voices? If a voice or spirit tells you to keep the Sunday instead of the Sabbath day, how do you know if it is telling you the truth? If a voice or spirit tells you to turn in Sabbath-keepers to the authorities, during the upcoming Sunday-Sabbath crisis, how do you know if it is the right thing to do?

TV: Abraham, knowing the voice of God bound his son Isaac on a stone altar in obedience and through this he was confirmed as righteous.

TV: And what has Christ commanded us to observe?

MM: "All things." No doubt this includes the law and the prophets. "To the law and to the testimony." What else do you think it includes?

But how do you (not Abraham) discern between voices? Would you turn in or kill Sabbath-keepers if a voice told you so?

If a voice or spirit tells you to keep the Sunday instead of the Sabbath day, how do you know if it is telling you the truth?

If a voice or spirit tells you to turn in Sabbath-keepers to the authorities, during the upcoming Sunday-Sabbath crisis, how do you know if it is the right thing to do?