'Thereof' in the Bible

When goods increase, they are increased that eat them: and what good is there to the owners thereof, saving the beholding of them with their eyes?

There is a sore evil which I have seen under the sun, namely, riches kept for the owners thereof to their hurt.

Every man also to whom God hath given riches and wealth, and hath given him power to eat thereof, and to take his portion, and to rejoice in his labour; this is the gift of God.

A man to whom God hath given riches, wealth, and honour, so that he wanteth nothing for his soul of all that he desireth, yet God giveth him not power to eat thereof, but a stranger eateth it: this is vanity, and it is an evil disease.

Better is the end of a thing than the beginning thereof: and the patient in spirit is better than the proud in spirit.