Mark of God

(Ezekiel 9:3-6 [KJV])
 [3] And the glory of the God of Israel was gone up from the cherub, whereupon he was, to the threshold of the house. And he called to the man clothed with linen, which had the writer’s inkhorn by his side;
 [4] And the LORD said unto him, Go through the midst of the city, through the midst of Jerusalem, and set a mark upon the foreheads of the men that sigh and that cry for all the abominations that be done in the midst thereof.
 [5] And to the others he said in mine hearing, Go ye after him through the city, and smite: let not your eye spare, neither have ye pity:
 [6] Slay utterly old and young, both maids, and little children, and women: but come not near any man upon whom is the mark; and begin at my sanctuary. Then they began at the ancient men which were before the house.
John 6:45 KJV
[45] It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me.
John 16:13 KJV
[13] Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
(I Corinthians 6:3 [KJV]) Know ye not that we shall judge angels? how much more things that pertain to this life?
(Romans 16:17 [KJV]) Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.

See also