Then ye shall let 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.
know
yada` (yaw-dah')
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially
saying
'amar (aw-mar')
to say (used with great latitude)
Israel
Yisra'el (yis-raw-ale')
he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: --Israel.
came over
`abar (aw-bar')
to cross over; used very widely of any transition (literal or figurative; transitive, intransitive, intensive, causative); specifically, to cover (in copulation)
this Jordan
Yarden (yar-dane')
a descender; Jarden, the principal river of Palestine -- Jordan.
on dry land
yabbashah (yab-baw-shaw')
dry ground -- dry (ground, land).