Phil. 2:14- 16 “Do everything without grumbling or arguing, 15 so that you may become blameless and pure, “children of God without fault in a warped and crooked generation.” Then you will shine among them like stars in the sky.” Here is what I think this verse means. When you are having true community with others and focusing on Christ together not only does not complaining benefit others( also what we call comiserating) BUT now in the place of gratitude with others YOU and WE all now fulfill being lights to a dark and perverse world.
The unceasing accusation( and rightfully so sometimes) from non Christians is that Christians are hypocrites, or that essentially if you guys are supposed to love like Jesus how come I don’t see that when I am around you..you guys just grumble and complain like the rest of us!’
When we follow through with following Christ by honoring authority and doing our jobs with excellence and being faithful to being on time and showing that we care( because of Jesus!) then that in it of itself becomes our greatest witness. So, it is love but love now is reflected in the practical sphere of influence that we have in the “warped and crooked” world. This is an awesome invitation to be like Jesus!