I am so very old and also twenty nine,
Plurally, sometimes described as “Evil“,
Though, I’ve been religiously “Saved”, from time to time,
Called young in blue by some who have said,
When really my colour was originally red,
Then again, the Romans called me of “Cyprus”,
Then, shortened my name,
Even today, you still know me as the same,
My first two letters, still allows me my place at the table,
And I can even be finely woven and as soft as sable,
Or even made into a named equivalent,
Of a US or British form of measurement.
Metaphorically good when “Straight” and bad when “Bent”,
If I’m not used wisely and with energy,
Eventually, I will be either “Fired”, or, “Spent”,


SOLUTION
I am so very old and also twenty nine, (No. 29 in the table of elements)
Plurally, sometimes described as “Evil“, (Coppers, pennies, money)
Though, I’ve been religiously “Saved”, from time to time,
Called young in blue by some who have said, (Boys in blue, police, coppers….slang)
When really my colour was originally red,
Then again, the Romans called me of “Cyprus”, (Cyprium …Metal of Cyprus)
Then, shortened my name, (Cuprum)
Even today, you still know me as the same, (CU)
My first two letters, still allows me my place at the table, (CU, in the table of elements)
And I can even be finely woven and as soft as sable,
Or even made into a named equivalent,
Of a US or British form of measurement. ( A Cable…Nautical measurement)
Metaphorically good when “Straight” and bad when “Bent”, (Honest or dishonest…Slang)
If I’m not used wisely and with energy,
Eventually, I will be either “Fired”, or, “Spent”,