'Fiftieth' in the Bible

and ye have hallowed the year, the fiftieth year; and ye have proclaimed liberty in the land to all its inhabitants; a jubilee it is to you; and ye have turned back each unto his possession; yea, each unto his family ye do turn back.

A jubilee it is, the fiftieth year, a year it is to you; ye sow not, nor reap its spontaneous growth, nor gather its separated things;

In the fiftieth year of Azariah king of Judah hath Pekahiah son of Menahem reigned over Israel, in Samaria -- two years,