jo'-nas (yonah, or yochanan; Iona):
(1) The name given in Matthew 12:39-41; 16:4; Luke 11:29-32 the King James Version to the Old Testament prophet Jonah (the Revised Version (British and American) renders "Jonah").
The name given in John 21:15,16 the King James Version to the father of the apostle Simon Peter. Nothing further is known of him, except the different forms of his name. In John 1:42 the King James Version he is called Jona (compare also Matthew 16:17 the King James Version). In John 1:42; 21:15,16 the Revised Version (British and American) he is called John, with the marginal note "Gr Joanes." In Matthew 16:17 the Revised Version (British and American) Simon Peter is called Simon Bar-Jonah.
Jonas may be a contraction for Joanes (Keim). It has also been suggested that the father of Simon may have had a double name, Jona-Johannes (compare F. H. Chase in HDB, article "John, father of Simon Peter").
C. M. Kerr