And it shall come to pass when your children
ben (bane)
a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or condition, etc.
shall say
'amar (aw-mar')
to say (used with great latitude)
unto you What mean ye by this service
`abodah (ab-o-daw')
work of any kind -- act, bondage, + bondservant, effect, labour, ministering(-try), office, service(-ile, -itude), tillage, use, work, wrought.