God's test commandment

Saturday - The sign, seal or mark of God. (as opposed to the mark of the beast)

Exodus 31:13
"Speak also to the children of Israel, saying: 'Surely My Sabbaths you shall keep, for it is a sign between Me and you throughout your generations, that you may know that I am the LORD who sanctifies you.'"
Exodus 31:17
"It is a sign between Me and the children of Israel forever; for in six days the LORD made the heavens and the earth, and on the seventh day He rested and was refreshed."
Ezekiel 20:12
"Moreover I also gave them My Sabbaths, to be a sign between them and Me, that they might know that I am the LORD who sanctifies them."
Ezekiel 20:20
"'And hallow My Sabbaths, and they will be a sign between Me and you, that you may know that I am the LORD your God.'"
Ephesians 4:30
"And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption."
Isaiah 58:13–14
"If you turn away your foot from the Sabbath, from doing your pleasure on My holy day, And call the Sabbath a delight, the holy day of the LORD honorable, And shall honor Him, not doing your own ways, Nor finding your own pleasure, nor speaking your own words, Then you shall delight yourself in the LORD; And I will cause you to ride on the high hills of the earth, And feed you with the heritage of Jacob your father. The mouth of the LORD has spoken."
Ezekiel 9:4-6
"And the LORD said to him, 'Pass through the midst of the city, through the midst of Jerusalem, and put a mark on the foreheads of the men who sigh and cry over all the abominations that are done within it.'" To the others He said in my hearing, “Go after him through the city and kill; do not let your eye spare, nor have any pity. Utterly slay old and young men, maidens and little children and women; but do not come near anyone on whom is the mark; and begin at My sanctuary.” So they began with the elders who were before the temple.
Deuteronomy 6:2, 8
"that you might fear the LORD your God, to keep all His statutes and His commandments which I command you, you and your son and your grandson, all the days of your life, and that your days may be prolonged... You shall bind them as a sign on your hand, and they shall be as frontlets between your eyes."
Jeremiah 17:19–27
"Thus says the LORD: 'Take heed to yourselves, and bear no burden on the Sabbath day, nor bring it in by the gates of Jerusalem; nor carry a burden out of your houses on the Sabbath day, nor do work, but hallow the Sabbath day, as I commanded your fathers. Yet they did not listen or incline their ear, but made their neck stiff, that they might not hear nor receive instruction. But it shall come to pass, if you diligently obey Me,' says the LORD, 'to bring in no burden through the gates of this city on the Sabbath day, but hallow the Sabbath day, to do no work in it, then there shall enter through the gates of this city kings and princes who sit on the throne of David, riding in chariots and on horses, they, and their princes, the men of Judah and the inhabitants of Jerusalem; and this city shall remain forever. They shall come from the cities of Judah and from the surroundings of Jerusalem, from the land of Benjamin and from the lowland, from the mountains and from the South, bringing burnt offerings and sacrifices, grain offerings and incense, and bringing sacrifices of praise to the house of the LORD. But if you will not heed Me to hallow the Sabbath day, and not bear a burden, and enter by the gates of Jerusalem on the Sabbath day, then I will kindle a fire in its gates, and it shall devour the palaces of Jerusalem, and it shall not be quenched.'"
Revelation 7:2–3

Then I saw another angel ascending from the east, having the seal of the living God. And he cried with a loud voice to the four angels to whom it was granted to harm the earth and the sea, saying, “Do not harm the earth, the sea, or the trees till we have sealed the servants of our God on their foreheads.”

Revelation 9:4

They were commanded not to harm the grass of the earth, or any green thing, or any tree, but only those men who do not have the seal of God on their foreheads.

Revelation 14:1

Then I looked, and behold, a Lamb standing on Mount Zion, and with Him one hundred and forty-four thousand, having His Father’s name written on their foreheads.

Revelation 22:4

They shall see His face, and His name shall be on their foreheads.

The Mark of the Beast

Sunday

Revelation 13:16–17

He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads, and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.

Revelation 14:9–11

Then a third angel followed them, saying with a loud voice, “If anyone worships the beast and his image, and receives his mark on his forehead or on his hand, he himself shall also drink of the wine of the wrath of God, which is poured out full strength into the cup of His indignation... And the smoke of their torment ascends forever and ever; and they have no rest day or night, who worship the beast and his image, and whoever receives the mark of his name.”

Revelation 15:2

And I saw something like a sea of glass mingled with fire, and those who have the victory over the beast, over his image and over his mark and over the number of his name, standing on the sea of glass, having harps of God.

Revelation 16:2

So the first went and poured out his bowl upon the earth, and a foul and loathsome sore came upon the men who had the mark of the beast and those who worshiped his image.

Revelation 19:20

Then the beast was captured, and with him the false prophet who worked signs in his presence, by which he deceived those who received the mark of the beast and those who worshiped his image. These two were cast alive into the lake of fire burning with brimstone.

Revelation 20:4

And I saw thrones, and they sat on them, and judgment was committed to them. Then I saw the souls of those who had been beheaded for their witness to Jesus and for the word of God, who had not worshiped the beast or his image, and had not received his mark on their foreheads or on their hands. And they lived and reigned with Christ for a thousand years.