A.T. Robertson Commentary Philippians 2:3

"[doing] nothing through faction or through vainglory, but in lowliness of mind each counting other better than himself;" — Philippians 2:3 (ASV)

Through vainglory (κατα κενοδοξιαν). Late word, only here in N.T., from κενοδοξος (κενοσ, δοξα, Galatians 5:26, only here in N.T.), empty pride.

In lowliness of mind (τη ταπεινοφροσυνη). Late and rare word. Not in O.T. or early Greek writers. In Josephus and Epictetus in bad sense (pusillanimity). For ostentatious humility in Co 2:18,23. One of the words, like ταπεινος (Matthew 11:29) and ταπεινοφρων (1 Peter 3:8, here alone in N.T.) that Christianity has ennobled and dignified (Acts 20:19).

Better than himself (υπερεχοντας εαυτων). Present active participle of υπερεχω in intransitive sense to excel or surpass with the ablative, "excelling themselves." See Ro 12:10.