John 7:13

οὐδεὶς μέντοι. Quite literally; no man dared speak openly either for or against Him, they were so afraid of the hierarchy. Experience had taught them that it was dangerous to take any line which the rulers had not formally sanctioned; and though the rulers were known to be against Christ, yet they had not committed themselves beyond recall, and might turn against either side. “A true indication of an utterly Jesuitical domination of the people” (Meyer). see on John 4:27.

13. παῤῥησίᾳ. The word occurs nine times in the Gospel and four in the First Epistle, not in Matt. or Luke, and only once in Mark. It means either ‘without reserve’ (John 7:4; John 10:24; John 11:14; John 16:25; John 16:29; John 18:20), or ‘without fear’ (John 7:13; John 7:26; John 11:54). Originally it was confined to unreserved or fearless speech, but John 7:4 and John 11:54 break through this restriction.

διὰ τὸν φ. τ. Ἰ. Because of the (prevalent) fear of the Jews. Thus ‘the sins of the teachers are the teachers of sin.’