Yea I will rejoice
suws  (soos)
to be bright, i.e. cheerful -- be glad, greatly, joy, make mirth, rejoice.
over them to do them good
towb  (tobe)
to be (transitively, do or make) good (or well) in the widest sense;--be (do) better, cheer, be (do, seem) good, (make) goodly, please, (be, do, go, play) well.
and I will plant
nata`  (naw-tah')
to strike in, i.e. fix; specifically, to plant -- fastened, plant(-er).
them in this land
'erets  (eh'-rets)
the earth (at large, or partitively a land) -- common, country, earth, field, ground, land, natins, way, + wilderness, world.
assuredly
'emeth  (eh'-meth)
stability; (figuratively) certainty, truth, trustworthiness -- assured(-ly), establishment, faithful, right, sure, true (-ly, -th), verity.
with my whole heart
leb  (labe)
the heart; also used (figuratively) very widely for the feelings, the will and even the intellect
and with my whole soul
nephesh  (neh'-fesh)
a breathing creature, i.e. animal of (abstractly) vitality; used very widely in a literal, accommodated or figurative sense (bodily or mental)


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