Coat of many colours
Origin
From the Bible, Genesis 37:3 (King James Version):
Now Israel loved
Joseph more than all his children, because he was the son of
his old age: and he made him a coat of many colours.
Genesis 37:23:
And it came to pass, when Joseph was come unto
his brethren, that they stript Joseph out of his coat, his coat
of many colours that was on him;
Genesis 37:32:
And they sent the coat of many colours, and they
brought it to their father; and said, This have we found: know
now whether it be thy son’s coat or no.
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