Commentaries:
Jamieson, Fausset, and Brown
Greater love hath no man than this, that a man lay down his life for his friends—The emphasis lies not on "friends," but on "laying down his life" for them; that is, "One can show no greater regard for those dear to him than to give his life for them, and this is the love ye shall find in Me."
That ye love one another, etc.—(See on John 13:34-35).
Other Jamieson, Fausset, and Brown entries containing John 15:13:
Job 16:21
Song of Solomon 8:6
John 11:11-16
Ephesians 5:2
1 Thessalonians 2:8
1 John 4:2
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