Commentaries:
Jamieson, Fausset, and Brown
avoid—stand aloof from. Same Greek, as in II Timothy 2:16; see on II Timothy 2:16.
foolish—Greek, "insipid"; producing no moral fruit. "Vain talkers."
genealogies—akin to the "fables" (see on I Timothy 1:4). Not so much direct heresy as yet is here referred to, as profitless discussions about genealogies of aeons, etc., which ultimately led to Gnosticism. Synagogue discourses were termed daraschoth, that is, "discussions." Compare "disputer of this world (Greek, 'dispensation')."
strivings about the law—about the authority of the "commandments of men," which they sought to confirm by the law (Titus 1:14; see on I Timothy 1:7), and about the mystical meaning of the various parts of the law in connection with the "genealogies."
Other Jamieson, Fausset, and Brown entries containing Titus 3:9:
1 Corinthians 1:20
1 Timothy 1:4
1 Timothy 1:6
1 Timothy 1:7
1 Timothy 6:4
2 Timothy 2:16
2 Timothy 2:23
Titus 1:10
Titus 1:13
Titus 3:1
Titus 3:8
Titus 3:10
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