And (saith he) this is he of whom I said, (as 1 Thessalonians 1:15), He cometh after me in order of time and ministry, but is more excellent than I am. See Poole on "1 Thessalonians 1:15".
Related Commentaries of John 1:30
John 1:30
30 This is he of whom I said, After me cometh a man which is preferred before me: for he was before me.