New King James Version (NKJV)
“16 ‘The Spirit’ (Ha-Ruwach: The Expression, Breath, etc..) Himself’ (Yad: Hand, Ministry, Work, etc..) bears witness with our ‘spirit’ (ruwach: expression, breath) that we are children of ‘God’ (Elohiym: the Great, Magistrates, Mighty – ones),”
Strong’s Hebrew Lexicon:
Spirit: 7307 ruwach roo’-akh from 7306; wind; by resemblance breath, i.e. a sensible (or even violent) exhalation; figuratively, life, anger, unsubstantiality; by extension, a region of the sky; by resemblance spirit, but only of a rational being (including its expression and functions):–air, anger, blast, breath, X cool, courage, mind, X quarter, X side, spirit((-ual)), tempest, X vain, ((whirl-))wind(-y).
Himself: 3027 yad yawd a primitive word; a hand (the open one (indicating power, means, direction, etc.), in distinction from 3709, the closed one); used (as noun, adverb, etc.) in a great variety of applications, both literally and figuratively, both proximate and remote (as follows):–(+ be) able, X about, + armholes, at, axletree, because of, beside, border, X bounty, + broad, (broken-)handed, X by, charge, coast, + consecrate, + creditor, custody, debt, dominion, X enough, + fellowship, force, X from, hand(-staves, -y work), X he, himself, X in, labour, + large, ledge, (left-)handed, means, X mine, ministry, near, X of, X order, ordinance, X our, parts, pain, power, X presumptuously, service, side, sore, state, stay, draw with strength, stroke, + swear, terror, X thee, X by them, X themselves, X thine own, X thou, through, X throwing, + thumb, times, X to, X under, X us, X wait on, (way-)side, where, + wide, X with (him, me, you), work, + yield, X yourselves.