·adj Serving for hire or wages; venal; mercenary.
II. Hireling ·noun One who is hired, or who serves for wages; ·esp., one whose motive and interest in serving another are wholly gainful; a mercenary.
A labourer employed on hire for a limited time (Job 7:1; 14:6; Mark 1:20). His wages were paid as so...
Easton's Bible Dictionary