Young dark man, fake, mean and treacherous.
While declaring his friendship, he meditates inwardly on betraying you; his morals are light, his associates deplorable.
Very talkative, he easily discloses to anyone what you have entrusted to him in good faith; even the most serious things he has sworn not to say. He does not hinder himself in any way to perjure himself, as long as it can attract him a profit, however small it may be.

This Jack having on the right a
Spade ♠: Bad acquaintance. – False friend to oust.
Heart ♥: Somebody will want to date you and get into a relationship with you; just say “no” to him. – Bad words from a young brown man.
Diamond ♦: Slander in the city.
Club ♣: Abuse of trust. – Flatterer to be feared.

Having on the left a
Spade ♠: Unscrupulous. – A young dark man will try to seduce you. He is not as powerful as the King of spades. If you recognise him, you should have no trouble of resisting him.
Heart ♥: A joyful meeting that will go wrong towards the end of the evening.
Club ♣: Jealousy. – Discomforts.

EXCEPTIONS.
Between two cards of the same value: Bad intentions in a business of family meeting.
Between Aces: Your enemy will go to jail.
With the Queen of Spades: Criminal attempt; the other card touching the Jack of Spades is void; it does not speak.
Near the Eight of Spades: Violent death of a friend; the other card touching the Jack of Spades is null; it does not speak.

Lawman, widower, a divorced man, man of bad faith, envious person who seeks to harm, a man who wants only sex and does not care a tiny bit about you, evil dark man; here comes the King of Spades. This is one of the worst, if not the worst card in the deck.
You might be better off by not looking into omens that it brings.

Taken in isolation, this King announces:
To a married man: Conflict, law officer, trial.
To a married woman: Temporary, but serious extramarital love affair and interference in your family or relationship. Even though you know that the King of spades is bad for you, you still want him and are unable to resist the temptation. A charming lover will soon turn into a brutal tyrant, who will put an enormous strain on your emotions. If it does not last too long, you might succeed to keep this affair private.
To a single man: Rivalry.
To a young girl: Unfaithful lover.
To a divorced person: Upcoming marriage with another divorced person.
To a widowed person: failure of a relationship that looked like a promising new start.

The King of Spades having on the right a
Spade ♠: Terrible omen. Bad dark man who wants to hurt you and abuse you. The omen is worse if the consultant is represented by a positive and happy card. In the worst it can mean a rape or daily physical and emotional abuse in a relationship.
Heart ♥: Sorrow caused by a divorced man. – Rejection of love, refusal to marry.
Diamond ♦: A lawyer will set a trap for you.
Club ♣: You will be sued soon, and you will lose the case.

Having on the left a
Spade ♠: A greedy and stingy man is trying to fool you.
Heart ♥: Sorrow caused by a divorced man. – Refusal to marry.
Diamond ♦: A lawyer will set a trap for you.
Club ♣: You will soon be prosecuted and you will lose your trial.

EXCEPTIONS.
Between two cards of the same value: Sickness.
Next to the Queen of Spades: Marriage; the other card touching the king becomes a silent; it does not speak. This is a positive card combination, surprisingly.
Between aces: You’ll go to jail.
Between two Aces, IMMEDIATELY FOLLOWED or PREVIOUS by a number of other Spades:
This is the most terrible sign that can be revealed by cards.
The King of Spades, so surrounded, is the man of law and devil of hell who announces to you that you will pass through the hands of justice and you will be completely destroyed. Your death will follow. It will be painful and violent.

The King of Diamonds sometimes symbolizes a soldier, or more generally – a man in a dangerous occupation, exposed to risks of injury or violent death (policeman, firefighter, roof-tiler, aircraft pilot and similar professions with elevated risks). For a young woman or a divorced woman, the isolated card means a proposal for marriage from a man in a dangerous occupation.
It also represents a blond man, self-important, haughty, fearsome, deceitful; in a word, a bad man.
It is one of the cards whose meaning depends mostly on the cards surrounding it.
So the number of its exceptions, i.e. special cards that give it a different meaning, is quite varied, as you will see below.

This card announces, having on the right a
Spade ♠: Naughty, quarrelsome man, whom you should be wary of.
Heart ♥: A beginning of a relationship with someone, who is not good for you. If the consultant is married: new acquaintance not to be frequented.
Diamond ♦: Flatterer of which we have everything to fear.
Club ♣: Somebody will try to steal from you.

Having on the left a
Spade ♠: Obstacle in your projects by a blond man.
Heart ♥: Serious suitor. If the consultant is old or married: loving and honest man.
Diamond ♦: Quarrel.
Club ♣: Advantageous offer by a blond man.

EXCEPTIONS.
The King of diamonds placed between two face cards, whatever they may be, means: Disunity, confusion.
With the Jack of DiamondS: News from a young man in a dangerous profession.
Between two SpadeS: Rivalry.
With the Queen of HeartS: Love of a soldier. For married or elderly people: Upcoming acquaintance of an honest man, military.
Having an ace on the right, the usual meaning of the card on the left is nil. Instead, this announces, regardless of the colour of the card on the left – upcoming trip away related to some danger or a man in dangerous business.
The King of Diamonds, between two diamonds, announces the visit of a man from out of town.