A.T. Robertson Commentary Acts 24:14

"But this I confess unto thee, that after the Way which they call a sect, so serve I the God of our fathers, believing all things which are according to the law, and which are written in the prophets;" — Acts 24:14 (ASV)

I confess (ομολογω). The only charge left was that of being a ringleader of the sect of the Nazarenes. This Paul frankly confesses is true. He uses the word in its full sense. He is "guilty" of that.

After the Way (κατα την οδον). This word Paul had already applied to Christianity (22:4). He prefers it to "sect" (αιρεσιν which means a choosing, then a division). Paul claims Christianity to be the real (whole, catholic) Judaism, not a "sect" of it. But he will show that Christianity is not a deviation from Judaism, but the fulfilment of it (Page) as he has already shown in Ga 3; Romans 9.

So serve I the God of our fathers (ουτως λατρευω τω πατρωιω θεω). Paul has not stretched the truth at all. He has confirmed the claim made before the Sanhedrin that he is a spiritual Pharisee in the truest sense (23:6). He reasserts his faith in all the law and the prophets, holding to the Messianic hope. A curious "heretic" surely!

Which these themselves also look for (ην κα αυτο ουτο προσδεχοντα). Probably with a gesture towards his accusers. He does not treat them all as Sadducees. See Tit 2:13 for similar use of the verb (προσδεχομενο την μακαριαν ελπιδα, looking for the happy hope).