to dig: to break open the ground to make a well, pit, or hole
TranslatabilityDirectCertaintySettled
At its core this verb describes breaking open the ground: sinking a well down to water, scooping out a hole, or cutting a trench. Most of its appearances are the wells of the book of beginnings, where Isaac's servants dig shaft after shaft and quarrel over the water they find.
The same action turns dark in the picture of digging a pit. Someone hollows out a trap for an enemy, and in a favorite turn of Israel's poetry the schemer tumbles into the very hole he dug. Here the digging is literal, but the point is moral: the harm you prepare for others can circle back on you.
A close Hebrew relative, כָּרָה, covers much the same ground and leans toward pits and graves, while this verb is at home sinking wells.
1bto dig a pit as a trap, in the picture of plotting harm that recoils on the schemer
Psa 7:15(16)Psa 35:7Ecc 10:8
2
to search out: to explore or scout a place to learn what it holds
TranslatabilityApproximateCertaintyStrong
When people are the ones searching, this verb means to go and find out what a place holds: scouts slipping into a city, an advance party sent to size up a land before an army moves. It is reconnaissance, boots on the ground, not reading or reflection.
The searching sense grows naturally out of the digging sense. To dig is to work down into the earth until you reach what you are after; to search out a land is to work through it until you know what is there. Even an eagle, in one vivid line of poetry, is said to search out its food from a high crag, scanning the ground below for prey.
Hebrew has a more common word for exploring at length, תּוּר, used of the twelve scouts who explored the promised land; this verb names the quicker, sharper probe.
reaches beyond breaking ground into the figurative sense of searching out, spying, or exploring, where nothing physical is dug at allDeu 1:22Jos 2:2Jos 2:3
Both
both name the plain act of excavating the ground to open a well, standing side by side for the same diggingNum 21:18
both describe hollowing out a pit as a trap, where the schemer falls into the hole he dugPsa 7:15
Its core sense is physical excavation: cutting down into the ground to draw out water, to set a trap, or for sanitation. This concrete digging is never carried by the other word.Gen 26:18Gen 26:19Deu 23:13
It pictures digging a pit as an image of plotting harm, where the schemer falls into the very hole he hollowed out.Psa 7:15Psa 35:7Ecc 10:8
Both
Both are used for reconnoitering territory: going ahead to scout out a land or a route before Israel advances into it.Deu 1:22Jos 2:2Num 13:2Deu 1:33
It reaches beyond physical ground into mental investigation: probing and seeking out wisdom and the sum of things with the mind.Ecc 1:13Ecc 2:3Ecc 7:25
Its participle names those who travel about for a living, the roving traders whose payments enriched Solomon.1Ki 10:152Ch 9:14
חָתַרTo dig through or break in, as tunneling through a wall, as opposed to this word's digging down into open ground.
digs sideways through a solid barrier, breaking through a wall to force an entry, the classic act of the housebreakerJob 24:16Ezk 8:8Ezk 12:5Ezk 12:7
pictures forcing a way through by sheer effort, whether burrowing down into the underworld to escape or straining at the oars against the seaAmo 9:2Jon 1:13
ḥaphar in the other biblical languages
ὀρύσσωGreek“to dig”The Greek verb for digging a pit, a winepress, or the ground, the New Testament counterpart of this word's excavating sense.
The most common use is digging down to reach water: the sustained labor of sinking a well, which the New Testament word never carries.Gen 26:19Gen 26:32Num 21:18
It is the verb for digging a pit as a hidden trap, which in the poetry recoils on the very one who dug it.Psa 7:15Psa 35:7Ecc 10:8
It reaches beyond moving earth to the sense of searching a place out, as spies explore and probe a land.Deu 1:22Jos 2:2Jos 2:3
Both
Both are the plain verb for breaking open the ground to make a pit or hollow, whether to sink a well or to bury something in the earth.Gen 26:19Mat 25:18
In the New Testament the word is always shaping a purpose-built hollow in the ground: the sunken trough of a winepress cut into rock or earth so the juice can run down and collect.Mat 21:33Mrk 12:1
It also covers simply scooping out a hole in the earth to hide something in it, with no thought of water or building.Mat 25:18
κατασκοπέωGreek“to spy”The Greek verb for spying out or reconnoitering, matching this word's sense of searching out a place.
Always names spying on people rather than on a place: slipping in among a group to watch it covertly, and here with hostile intent to undermine it.Gal 2:4
Never means physical digging; it is only ever about gathering intelligence, so the sinister sense of espionage is built into the word itself.Gal 2:4
What scholars say about ḥaphar
Standard lexica (BDB, HALOT) treat חפר as a verb whose primary sense is "to dig, excavate" (wells, pits, trenches) and which also carries an extended sense "to search out, spy out, explore," as in the reconnaissance narratives of Joshua 2 and Deuteronomy 1. BDB files both nuances under a single root חפר I, distinguishing it from the homophonous חָפֵר "to be abashed, ashamed," which is a separate lexeme with its own entry. Whether the "spy out" usage is a metaphorical development of "dig" or reflects a distinct Semitic root has been discussed, but both nuances are well attested and their meanings are not in serious doubt. Job 11:18 is the one crux, read either as "dig (a protection)" or "look about."