This would be a real problem if Joseph were the biological father, because Jeremiah prophesied that Jehoichin would have no descendents on the throne. However, the genealogy of Mary in Luke shows that Jesus was NOT biologically descended from Jeconiah and Jehoiakim, because Mary’s ancestors diverged from the kingly line.
Jambo hili lingekuwa shida kubwa endapo Yusufu angekuwa baba halisi wa Yesu kwa sababu Yeremia alitabiri kuwa Yehoyakin hatakuwa na mzao wake yeyote atakayeketi kwenye kiti cha enzi.