deep place (Hebrew #4278)

Psalm
95:4   In his hand
yad (Hebrew #3027)
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)
KJV usage: (+ 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.
Pronounce: yawd
Origin: a primitive word
are the deep places
mechqar (Hebrew #4278)
properly, scrutinized, i.e. (by implication) a recess
KJV usage: deep place.
Pronounce: mekh-kawr'
Origin: from 2713
of the earth
'erets (Hebrew #776)
the earth (at large, or partitively a land)
KJV usage: X common, country, earth, field, ground, land, X natins, way, + wilderness, world.
Pronounce: eh'-rets
Origin: from an unused root probably meaning to be firm
: the strength
tow`aphah (Hebrew #8443)
(only in plural collective) weariness, i.e. (by implication) toil (treasure so obtained) or speed
KJV usage: plenty, strength.
Pronounce: to-aw-faw'
Origin: from 3286
of the hills
har (Hebrew #2022)
a mountain or range of hills (sometimes used figuratively)
KJV usage: hill (country), mount(-ain), X promotion.
Pronounce: har
Origin: a shortened form of 2042
is his also.