Commentaries:
Robertson's Word Pictures (NT)
If thy brother sin against thee (ean amarthsh adelfov sou). Literally, commit a sin (ingressive aorist subjunctive of amartanw). Aleph B Sahidic do not have "against thee" (eiv se).
Shew him his fault (elegcon). Such private reproof is hard to do, but it is the way of Christ.
Thou hast gained (ekerdhsav). Aorist active indicative of kerdainw in conclusion of a third-class condition, a sort of timeless aorist, a blessed achievement already made.
Other commentary entries containing this verse:
Matthew 18:21
Luke 3:19
1 Corinthians 9:19
Titus 3:10
Hebrews 11:1
1 Peter 3:1
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