Answer:
First I may be your servant's name; then your desires I may proclaim; And when your mortal life is over hold all your wealth within my power.
If you have me you want to share me. If you share me you don't have me. What am I?
I am owned by every man though my length differs. Their wives uses me after getting married.
What always ends everything?
I hop around and deliver eggs at Easter.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.