1 Corinthians 10:14 - Matthew Poole's English Annotations on the Holy Bible

The apostle would have them avoid all sin, but idolatry more especially, keeping at the utmost distance imaginable from that, being of all sins in its kind the greatest transgression; upon which account it is often in Scripture compared to whoredom. Though we ought to be afraid of and to decline all sin; yet as God hath revealed his wrath against any particular sin more than other, so every good Christian is obliged more to detest and abhor that sin. How the Corinthians were concerned in this caution, we shall read afterwards, 1 Corinthians 10:20. For though idolatry be properly where the failure is in the ultimate or mediate object of our worship, and the creature is made either the ultimate term of our worship, or the medium in and by which we worship the Creator; yet there are many other ways by which we may be partakers of the sins of others, and this sin of idolatry in particular: and idolatry being a sin of the greatest magnitude, from which they were bound to keep the furthest distance, they were bound to take heed of being partakers of other men's sins of this kind.