For God is my witness. He now declares more explicitly his affection for them, and, with the view of giving proof of it, he makes use of an oath, and that on good grounds, because we know how dear in the sight of God is the edification of his Church. It was, too, more especially of advantage, that Paul's affection should be thoroughly made known to the Philippians. For it tends in no small degree to secure credit for the doctrine, when the people are persuaded that they are beloved by the teacher. He calls God as a witness to the truth, inasmuch as he alone is the Truth, and as a witness of his affection, inasmuch as he alone is the searcher of hearts. In the word rendered long after, a particular term is made use of instead of a general, and it is a token of affection, inasmuch as we long after those things which are dear to us. In the bowels He places the bowels of Christ in opposition to carnal affection, to intimate that his affection is holy and pious. For the man that loves according to the flesh has respect to his own advantage, and may from time to time change his mind according to the variety of circumstances and seasons. In the meantime he instructs us by what rule the affections of believers ought to be regulated, so that, renouncing their own will, they may allow Christ to sit at the helm. And, unquestionably, true love can flow from no other source than from the bowels of Christ, and this, like a goad, ought to affect us not a little -- that Christ in a manner opens his bowels, that by them he may cherish mutual affection between us. [1]

Footnotes

1 - Beza, when commenting on the expression, in the bowels of Jesus Christ, observes, "Alibi solet dicere, In Christo. Ut autem significet ex quo fonte promanet affectus iste, et quo etiam feratur, additum visceribus nomen magnum pondus addit sententiæ, ut intimus amor significetur. Solent enim Hebraei rchmym, rachamim, id est, viscera omnes teneros ac veluti maternos affectus vocare;" -- "He is accustomed in other cases to say, In Christ. But to intimate from what fountain that affection flows, and in what direction also it tends, the addition of the term bowels adds great weight to the statement, so as to express intimate affection. For the Hebrews are accustomed to employ the term rchmym rachamim, that is, bowels, to denote all tender and as it were motherly affections." -- Ed.

For God is my record - My witness; I can solemnly appeal to him.
How greatly I long after you all - To see you; and how much I desire your welfare.
In the bowels of Jesus Christ - The word "bowels," in the Scriptures denotes the upper viscera - the region of the heart and lungs: see the notes at Isaiah 16:11. That region was regarded as the seat of affection, sympathy, and compassion, as the heart is with us. The allusion here is to the sympathy, tenderness, and love of the Redeemer; and probably the meaning is, that Paul regarded them with something of the affection which the Lord Jesus had for them. This was the tenderest and strongest expression which he could find to denote the ardor of his attachment.

For God is my record - I call God to witness that I have the strongest affection for you, and that I love you with that same kind of tender concern with which Christ loved the world when he gave himself for it; for I am even ready to be offered on the sacrifice and service of your faith, Philippians 2:17.

(2) For God is my record, how greatly I long after you all in the bowels of Jesus Christ.
(2) He declares his good will towards them, in addition showing by what means they may chiefly be strengthened and encouraged, that is, by continual prayer.

For God is my record,.... Which is all one as swearing by him; it is in form of an oath, being a solemn appeal to him as the searcher of hearts, for the uprightness of his mind, the sincerity of his expressions, and the strength of his affections:
how greatly I long after you all; the common members, as well as the bishops and deacons, the weak as well as the strong believers, the poor as well as the rich; the apostle's respects were universal, and without distinction: he longed after their spiritual welfare, an increase of gifts and grace among them; he was their spiritual father, and he hankered after them; as parents after their children; he longed to see them, that he might enjoy their company and conversation, have communion with them, and impart some spiritual gift unto them: and this he did
in the bowels of Jesus Christ; not with an human and carnal affection, but with a Christian and spiritual one; with a love which came from Christ, and was in imitation of him, and on account of their being in him, loved by him, belonging to him, and being believers in him: it was in the most tender manner that he loved them, and was affected to them; the phrase denotes, that his love towards them was internal, in his heart, and was most tender and strong; and like to that tender concern Christ had for them, and which he stirred up in him.

Shall not we pity and love those souls whom Christ loves and pities? Those who abound in any grace, need to abound more. Try things which differ; that we may approve the things which are excellent. The truths and laws of Christ are excellent; and they recommend themselves as such to any attentive mind. Sincerity is that in which we should have our conversation in the world, and it is the glory of all our graces. Christians should not be apt to take offence, and should be very careful not to offend God or the brethren. The things which most honour God will most benefit us. Let us not leave it doubtful whether any good fruit is found in us or not. A small measure of Christian love, knowledge, and fruitfulness should not satisfy any.

Confirmation of Philippians 1:7.
record--that is, witness.
in the bowels of Jesus Christ--"Christ Jesus" is the order in the oldest manuscripts. My yearning love (so the Greek implies) to you is not merely from natural affection, but from devotedness to Christ Jesus. "Not Paul, but Jesus Christ lives in Paul; wherefore Paul is not moved in the bowels (that is, the tender love, Jeremiah 31:20) of Paul, but of Jesus Christ" [BENGEL]. All real spiritual love is but a portion of Christ's love which yearns in all who are united to Him [ALFORD].

Long after you. Love you and long for your presence.
In the bowels of Jesus Christ. See Revision. With a tender love like that of Christ.
This I pray. Not that their love for him should abound more, but with the increase of their love there might be fuller knowledge and wiser judgment.
That ye may approve. This increase in knowledge and judgment would lead them to approve what is really excellent. How often men approve what does not bless them! How often the judgment errs!
Without offense. Without leadings others to stumble.
Being filled with the fruits of righteousness. This must follow from being "sincere," etc. Those who are earnest and sincere occupy themselves with works of righteousness, such as are due to faith in Jesus Christ and his help, and which are unto the glory and praise of God. In no way can we glorify God more than by living holy, helpful lives.

I long for you with the bowels of Jesus Christ - In Paul, not Paul lives, but Jesus Christ. Therefore he longs for them with the bowels, the tenderness, not of Paul, but of Jesus Christ.