The matter of marriage is a very serious institution to be a part of, for its a covenant between you guys and God " a celestial being". This institution is a fine one that has been ordained by God but can be very costly in danger when you make a mistake of looking out for " a gold that glitters" only.

Respectively, not just marriage but any form of relationship. The wrong man or woman you accept to be part of your life in holy matrimony can jeopardize both your physical and spiritual being subjecting you to advert peril.

The term 'relationship' of any form has been widely practised by both the young and old most of which are void of its merit and demerit.

Most mistakes men and women look out for in a relationship are;

Beauty. For the men, this mistake made is looking out only for how beautiful or pretty she his, captivated by his lust for her beauty and disregarding other traits that are necessary to check before entering into a relationship with her.

The women, are attracted by the charming words of men, his disposition, charisma and also how handsome he his, forgetting to check the necessary traits that can jeopardize you, if those traits acquired by the guy are bad.

Appearance. It is not enough for a man to look out for a woman or lady with good body physics that make her gorgeous. It's cool you look out for that but dangerous to consider it a vital reason you went for her.

In the same view, women who only look out for how tall, huge, fair or muscular he his, not having to consider other traits fall prey to the victim of the terror he possesses. 

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Source:
https://pubsity.com/not-all-that-glitters-are-gold