I am reposting this since I think it got overlooked:
Gordon Fee in his IVP commentary on the Philippians writes regarding Philippians 1:2:
In a profound sense this greeting nicely represents Paul’s larger theological perspective. The sum total of God’s activity towards his human creatures is found in the word grace; God has given himself to his people bountifully and mercifully in Christ. Nothing is deserved, nothing can be achieved. The sum total of those benefits as they are expereinced by the recipients of God’s grace is peace, God’s shalom, both now and to come. The latter flows out of the former, and both together flow from God our Father and were made effective in our human history through the Lord Jesus Christ.
The collocation of the Father and Son in such texts as these must not be overlooked. In the theology of Paul, whose central concern is salvation in Christ, God the Father is understood to initiate such salvation and his glory is its ultimate reason for being. Christ is the One through whom God’s salvation has been effected in history. But texts such as this one, where Father and Son are simply joined by the conjunction and as equally the source of grace and peace, and many others as well, make it clear that in Paul’s mind the Son is truly god and works in cooperation with the Father and the Spirit for the redemption of the people of God (43-44).
I remember noticing this possibility when I was learning NT Greek at my home church back in Washington. I think in my case I was noticing the preposition απο in Galatians 1:3 that grace and peace come “from God our Father and the Lord Jesus Christ.” I was warned not to make too much of it, but when I see this comment by a premier NT Scholar, who happens to also be a Pentecostal, I take encouragement to know I was thinking in the right way.
I preached this very thing this Sunday I and I think it went well – I just talked about grace and peace in as simple of terms as I could and then showed how they come only from God and that our ability to show grace to others is only because we have ourselves received grace from God and understand that. I also shared about how when we step out of the grace of God we tend to not be at peace because peace is the benefit of walking in the grace of God. When we step out of that we start to worry, fret, have trouble, and all sorts of other things. When we walk in the grace and the mercy of God, however, those kinds of things tend to be minimized since we are at peace, which comes when we walk in grace and so on.
This kind of greeting is important to because in Philippians Paul exhorts the believers to be unified and to be humble and concerned for each others needs and to be joyful in the midst of suffering or persecution. These kinds of things are not possible if we are not walking in the grace of God and have peace in our hearts as a result – when we are not in grace we grumble, complain, argue, become selfish, not care for others and so on. So I think knowing the benefits of grace and peace are important to understand if we are to understand the book of Philippians or if we are to understand what it means to be followers of Jesus Christ and to live accordingly.