It's one thing to live after the flesh; it is an all together different thing to do so while wearing the precious name of Christ! How can a man drag Jesus' name along with him as he wallows in the mud and filth of this world? Live as you will--but, if you choose to indulge your flesh - please leave Christ and His name out of it. If you flatter yourself a "Christian" and yet "fornicate" with the world and find pleasure in doing so - please keep your delusion (that you are one of His) to yourself.
"Paul wept on account of the GUILT of those persons who, having a name to live, were dead, and while uniting themselves with a Christian church, were not walking as they should do among men and before God. Notice the sin with which he charges them. He says, "Their God was their belly;" by this I understand that they were sensual persons. There were those in the early church who, after they sat at God's table, would go away and sit at the feasts of the heathen, and there indulge in gluttony and drunkenness; others indulged in lusts of the flesh, enjoying those pleasures (so miscalled) which, afterwards, bring unutterable pain even to the body itself, and are disgraceful to men, much more to professors of religion. Their God was their belly. They care more about the dress of their body than the dress of their soul; they regard more the food of the outward carcass than the life of the inner man.
Ah! my hearers; are there not many everywhere in our churches who still bow before their belly-god, and make themselves their own idols? Is it not notorious, in almost every society, that professing men can pamper themselves as much as others?—I mean not all, but some.
Ay, I have heard of drunken professors; not men who positively reel through the street, who are drunken in mid-day or intoxicated before their fellow-men, but men who go to the very verge of drunkenness in their social parties; men who take so much, that while it would be an insult to their respectability to call them intoxicated, it would be equally an insult to the truth to call them sober.
Have we not some men in our churches (it is idle to deny it) who are as fond of the excesses of the table and surfeit in the good things of this life as any other class of men? Have we not persons who spend a very fortune upon the dress of their bodies, adorning themselves far more than they adorn the doctrine of their Saviour; men whose perpetual business it is to take good care of their bodies, against whom flesh and blood never had any cause to complain, for they not only serve the flesh, but make a god of it?
Ah! sirs, the church is not pure; the church is not perfect; we have scabbed sheep in the flock. In our own little communion, now and then, we find them out, and then comes the dread sentence of excommunication, by which they are cut off from our fellowship; but there are many of whom we are not aware, who creep like snakes along the grass, and are not discovered till they inflict a grievous wound upon religion, and do damage to our great and glorious cause. Brethren, there are some in the church (both established and dissenting)—let us say it with the deepest sorrow—"whose god is their belly."
"For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ: Whose end is destruction, whose God is their belly, and whose glory is in their shame, who mind earthly things."—Philippians 3:18-19.