'Profited' in the Bible

What is the Almighty that we should serve him? and what are we profited if we pray unto him?

But ye say, Whosoever shall say to his father or mother, It is a gift, whatsoever it be by which received from me thou wouldest be profited:

Be not carried away with various and strange doctrines; for it is good that the heart be confirmed with grace, not meats; those who have walked in which have not been profited by them.