'Fifty' in the Bible

even unto the morning after the seventh sabbath shall ye count fifty days; and ye shall present a new oblation to Jehovah.

And thy valuation shall be of the male from twenty years old even unto sixty years old: thy valuation shall be fifty shekels of silver, after the shekel of the sanctuary;

And if a man hallow to Jehovah part of a field of his possession, thy valuation shall be according to what may be sown in it: the homer of barley seed at fifty shekels of silver.