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Seer
Seer [EBD]
a name sometimes applied to the prophets because of the visions granted to them. It is first found in 1 Sam. 9:9. It is afterwards applied to Zadok, Gad, etc. (2 Sam. 15:27; 24:11; 1 Chr. 9:22; 25:5; 2 Chr. 9:29; Amos 7:12; Micah 3:7). The "sayings of the seers" (2 Chr. 33:18, 19) is rendered in the Revised Version "the history of Hozai" (marg., the seers; so the LXX.), of whom, however, nothing is known. (See PROPHET.)
SEER [ISBE]
SEER - se'-er, ser: The word in English Versions of the Bible represents two Hebrew words, ro'eh (1 Sam 9:9,11,18,19; 2 Sam 15:27; 1 Ch 9:22, etc.), And chozeh (2 Sam 24:11; 2 Ki 17:13; 1 Ch 21:9; 25:5; 29:29, etc.). The former designation is from the ordinary verb "to see"; the latter is connected with the verb used of prophetic vision. It appears from 1 Sam 9:9 that "seer" (ro'-eh) was the older name for those who, after the rise of the more regular orders, were called "prophets." It is not just, however, to speak of the "seers" or "prophets" of Samuel's time as on the level of mere fortune-tellers. What insight or vision they possessed is traced to God's Spirit. Samuel was the ro'-eh by pr-eeminence, and the name is little used after his time. Individuals who bear the title "seer" (chozeh) are mentioned in connection with the kings and as historiographers (2 Sam 24:11; 1 Ch 21:9; 25:5; 29:29; 2 Ch 9:29; 12:15; 19:2, etc.), and distinction is sometimes made between "prophets" and "seers" (2 Ki 17:13; 1 Ch 29:29, etc.). Havernick thinks that "seer" denotes one who does not belong to the regular prophetic order (Introductions to Old Testament, 50 ff, English translation), but it is not easy to fix a precise distinction.See PROPHET; PROPHECY.
James Orr
Also see definition of "Seer" in Word Study