Note 5 at Phil. 2:14: When we let God work in our life, to will and to do His good pleasure, we become free from murmurings and disputings.

The word "murmurings" is the Greek word GOGGUSMOS and is translated in the New Testament three times as "murmuring" (Jn. 7:12; Acts 6:1; here) and one time as "grudging" (1 Pet. 4:9). Its Greek meaning carries the idea of (1) a murmuring and muttering, and (2) a displeasure and complaining that is more private in nature than public, i.e. a secret displeasure not openly avowed (W.E. Vine; Thayer).

The word "disputings" was translated from the Greek word DIALOGISMOS, which was also translated "doubtful" in Romans 14:1 and "doubting" in 1 Timothy 2:8. It carries the idea of arguing and quarreling which does not bring about the righteous life that God desires (Jas. 1:20).