Let there be none to extend
mashak (maw-shak')
to draw, used in a great variety of applications (including to sow, to sound, to prolong, to develop, to march, to remove, to delay, to be tall, etc.)
mercy
checed (kheh'-sed)
kindness; by implication (towards God) piety: rarely (by opposition) reproof, or (subject.) beauty
unto him neither let there be any to favour
chanan (khaw-nan')
to bend or stoop in kindness to an inferior; to favor, bestow; causatively to implore (i.e. move to favor by petition)
his fatherless children
yathowm (yaw-thome')
a bereaved person -- fatherless (child), orphan.