Paul is exhorting the Corinthians to avoid any connection with idolatry, so that not only their bodies but their minds as well might be separated from it in order to destroy any form of temptation. For anyone involved in idolatry will expect something out of it. To trust in an idol is to turn away from God. Commentary on Paul’s Epistles.
Wherefore, my dearly beloved, flee from idolatry. Not only avoid the worship which is given in sacrificing to and calling on idols, but also abstain from eating things offered to idols from any feeling of their sanctity, as the heathen eat them when the sacrifice is completed, either at the altars of in the temples. So you would share in their sacrifices, and would be thought to approve of them, and even to offer them. The Apostle is now going on to speak of the eating of things offered to idols. Chapter ix. was a long digression about a paid or unpaid ministry, about the Christian contest, the prize, and the competitors; the earlier part of chap. x. has been about the sins and punishments of the Hebrews; and now, after this long digression, he returns to the subject of things offered to idols, which was begun in chap, viii. The "wherefore" signifies, then, that he had written all that precedes for the purpose of warning them against idolatry and idol-offerings.
There are various kinds of idolatry. It is the perfection of Angels never to err: it is a human imperfection to fall into error, but a diabolical crime, so to love our error, as to divide the Church by schism, or leave it by heresy: this love of self is the most dangerous idolatry.
Again he courts them by the name of kindred, and urges them to be rid of this sin with all speed. For he did not say, simply, depart, but flee; and he calls the matter idolatry, and no longer bids them quit it merely on account of the injury to their neighbor, but signifies that the very thing of itself is sufficient to bring a great destruction.
For with this ceremony, and dress, and pomp, it is presented in sacrifice to idols, its originators, to whom its use is specially given over, and chiefly on this account, that what has no place among the things of God may not be admitted into use with us as with others. Wherefore the apostle exclaims, "Flee idolatry: "