such point does not limit:
men can stay single
   it said 'it is better' not 'it is required'..   so men can be single or be gay or other

men can have more than one wife
   it said 'his own wife' not 'only one wife' .. so men can have a wife and a husband.. or multiple wives
   if it was worded 'should have only on wife' then a man cant then have a house or a car or children as all he is allowed is a wife

also. the real 'holy bible' was not even written in modern english. so overall the 'holy bible' said none of that