Commentaries:
Robertson's Word Pictures (NT)
Andrew (Andreav). Explained by John as one of the two disciples of the Baptist and identified as the brother of the famous Simon Peter (cf. also John 6:8; John 12:22). The more formal call of Andrew and Simon, James and John, comes later (Mark 1:16 ff.; Matthew 4:18 ff.; Luke 3:1-11).
That heard John speak (twn akousantwn para Iwanou). "That heard from John," a classical idiom (para with ablative after akouw) seen also in John 6:45; John 7:51; John 8:26, John 8:40; John 15:15.
Other Robertson's Word Pictures (NT) entries containing John 1:40:
Matthew 4:19
John 1:35
John 6:8
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