Commentaries:
Robertson's Word Pictures (NT)
Not to think of himself more highly than he ought to think (mh uperfronein par o dei fronein). Indirect negative command after legw (I say). Play on the two infinitives fronein, to think, and uperfronein (old verb from uperfrwn, over-proud, here only in N.T.) to "over-think" with par o (beyond what) added. Then another play on fronein and swfronein (old verb from swfrwn, sober-minded), to be in one's right mind (Mark 5:15; II Corinthians 5:13). Self-conceit is here treated as a species of insanity.
A measure of faith (metron pistewv). Accusative case, the object of the verb emerisen. Each has his gift from God (I Corinthians 3:5; I Corinthians 4:7). There is no occasion for undue pride.
To each man (ekastw). Emphatic position before wv (as) and emphasizes the diversity.
Other Robertson's Word Pictures (NT) entries containing Romans 12:3:
Romans 12:6
2 Timothy 1:9
Titus 2:6
Hebrews 11:3
Hebrews 13:1
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